First time, build a straight end, blocky riser, Hill bow. 2 lams, 2 pieces of glass from Kenny, a 2X2X16" chunk of hardwood from the lumberyard and any decent slow setting clear epoxy with at least 1% elongation. You can clamp or strap it to a flat board and let it cure at room temp. No form, no heat box necessary. Should not cost more that $100 and you might have epoxy for more than one bow. You don't need to buy a ton of epoxy either. Back when HH archery sold bow making supplies, they sold 81grams of EA-40 for a 3 lam bow. A 72X1.5X.005(super fat) glue line
X3 works out to around 36grams of glue per bow. I usually mix up around 100grams for a 3 lam and always have a bit left in the pot, plus plenty of squeeze out.