to be honest in terms of getting glass, i kinda have no clue. it depends alot on which way i want to go (plexi or glass, thickness).
at first i was planning on getting glass atleast 3/4in glass, so i called around to some local places. most said that they dont carry anything thicker than 1/2in. and those that do have thicker were like atleast 300-400 for the dimensions i wanted.
so i started looking online, and i came across the anythingfish's calculator and it said that with the window sizes 24"x48" that i was planning to use, need to be 1/2inch to have a safety factor of 4 which is on the safer side (or thats what i'm guessing anyway, dont take my word for it).
i looked at some online vendors and the shipping for glass is way more expensive for glass because of the weight, so i decided on plexiglass. so far the cheapest i found for 1/2" thick 24"x48" was 77bucks a sheet and 90bucks for shipping putting the total at around 250. i still have to look for plexiglass locally so i'll let you know what i find.
its cool and all living here, but building materials and shipping prices are way too expensive