You should have no problem at all getting a piece of glass cut from any glass shop and Im sure it will be cheaper than buying these other materials. I have had glass cut for counter tops, desks, night stands, and even fish tanks at multiple places without issue. Call before you go making purchases, you may be pleasantly surprised. 75 dollars is highway robbery. I got my coffee table glass top cut and polished 1/4"x 24"x 36" for 35 dollars. Call around. There are powder coating shops out here that sandblast, most charge around 60/hr, one charges 160/hr... call around.