Haha thanks bfq, alot of good ideas there. i've alot to say so hold on.....
As for mounting feet for the fan, i need to figure up some way of mounting the 4" inline duct fan i have, a plumming rubber pvc boot to screw it into or something, i figure i can wrap the fan body with something (sorta like sound dampener), to hopefully kill any resonances in the tin (tin is very thin and resonates very loudly at high frequencies).
I also purchased a single 2 light switch to put on the outside on a side, fans will be on 24/7, so no need of on/off for it, just lights and mainly the UVB, so 1 switch on/off for main lights, then on/off for UVB for easy access and no need to fiddle around the back of it and mess with ALOT of wiring and cords, will only have 1 extension cord coming out, compaired to my 3 120v AC's going into a splitter then going into the box....very hard to move and cable management sucks.
As for the Ducting, i got a 8' section of it at lowes, 4", but after your suggestion of using something "cleaner, less rippled" on the inside for air to transfer through would be alot quieter, what would be flexible enough to articulate as needed and be very clean on the inside?, i'm going to try and line the whole enclosure with a material to hopefully quieten the whole cabinet (carpet padding type material), you can tap your finger on a side and it tends to resonate nicely, with a moderate thud, so i need to cover the sides with a material to mass load the panels, should make it moderalty quieter on the outside as well.
I decided against painting the inside to keep the light in, and instead i'm just going to cut cardboard panels the proper size, and spray glue them car windshield things onto the panels so they sit inside and can be removed when needed.
I saw lowes had 150W HPS bulbs for $16, and the 50-75-and 100w were the same costs, i couldn't find any ballasts that worked for it, Said on box ANSI S55 ballast........What kind of temps will i get with the HPS if i get it, also suggested footprint for a 200w is 2'x2' square, do i need a 200w?. Theres a few ways i've thought of doing this to keep temps down hopefully......
-Cool tube seems like the best bet, Fan on 1 end pulling out, the end of the cool tube, perforated with holes to allow air exchange from the inside of the cabinet to the outside using a single fan. Where can find the Plexiglass tubes for this and i need to make an end cap for air to be allowed in, pass by the bulb, then out through where the bulb screw into socket. reflector On the top half of the plexi cylinder if the bulb is horizontal at the top for best light dispertion.....Biggest problem is moving enough air through the cool tube to be able to clean it with my homemade carbon filter. I also bought a febreeze carbon filter that you plug into your wall that constantly circulates a moderate amount of air....that'll be put into the flower chamber to clean some air as well before the output fans pull it out and push it through the carbon filter i made.
-I can get a cooled ballast, simply air coming in from outside, pushed through hood and then out, but i need 2 fans that way, 1 for light and 1 for cabinet, only 1 Carbon filter needed for cabinet fan, so thats 2x the cost for the airflow. This is how picasso did it in his grow, using 2 250+cfm fans, one for ballast, 1 for area.
But i do agree with your thought about having all electrical shoved up top, seems the best bet, and best organized, an no fear of dropping water on the electronics.
I really don't even know if i need a veg chamber, would be nice, but i figure if i can put a single girl on one side, then a very small 1ftx1ft (1/3 of bottom width) little area can be partitioned off on the bottom to just house a single clone for rooting and some veg. Ideally from what i've seen with my own grow so far, 2-3weeks veg 18 or 16hrs then straight to 12/12 and let her grow into the screen. Another idea is to put on shelf at the top as suggested, then the lower shelf to a point where the pot could stick through the shelf and hang into a lower chamber....thats where i can have my veg chamber, and drop the Cubic feet inside the chamber to just at the shoulder of the pot....less air to heat/less air to move and clean....also give me a chamber for veg if need be.
I really want to keep going with the scrog's i just love the interactivness. But really only wanting 1plant in flower and a single in veg/clone, with a scrog i should be able to yield more than enough for myself over a 2-3month period.
Hope that wasn't painful to read.