Your going to spend a fortune on molasses.....If you buy those little pint jars..... Even more so for those little jars labeled "organic" molasses! I go to my local restaurant/bakery supply and buy by the case (4 - 1 gallon jugs that are organic. You can even buy by the single gallon jug for about $18 bucks a gallon. Those little jars of Grandma's or Brer Rabbit brake down to over $40 bucks a gallon! Amazon has Grandma's at over $47 a gallon!
Molasses IS mandatory for any tea that is intended to have living bio counts!
The molasses is the media that feeds the bacterial growth in the TEA when brewed! Not later in the soil, or more accurately, the carbs in the molasses are used up in brewing by feeding the increasing bacterial "herd" created by brewing AACT....
Brewing times are debatable. The best AACT's are done for 36 - 48 hrs! If you remove some from a basic bio teas at 18 hrs and strain it out. You put that in a spray bottle and you have a good PM killer/preventer. Don't do this with a fert tea, or you'll burn the leaves.
As far as adding any form of Kelp to your ingr. before brewing....Is not the best idea! Kelp will reduce the living active Bio counts in the brew by around 42-45%! Add your liquid kelp after you brew, to the tea! You gain on the all important living bio's that the tea is famous for...
You can make a fert tea without molasses. You can do things like brew grass clippings, various animal poo's, differing plant matter, even pee ! these are strictly fert teas and contain no real countable living bio's...
So if you google? Google AACT tea's, Fertilizer teas and cross over by links from those sites you view to others...
Welcome to organic!
Your next step will be researching water only soils....
Have fun