Need advice of Hydroponics Business Owner: various retail markups

I am curious as to the markups for various equipment because i struck up a deal to design a website for a local hydroshop owner for equipment at cost. I want to know what cost is so I don't get ripped, plus it would be great for people to know here!

Curious about:

• Lamp, ballast and reflector markup
• hydroponics equipment markup
• ez-clone brand markup
• botanicare markup
• JARDIN DARK ROOM ETC. MARKUP
• Carbon filter markup
• and everything else but those specifically.

I appreciate whatever feedback you can give. this will be an interesting thing to have in the forums as I cant find answers anywhere. Let us have TRANSPARENCY!

Dude its gunna be hard! The best and easiest way is contact the company and tell them your building a web sight store and looking at selling their products you want their cataloges.