Without spending an obscene amount of money for an oven is it possible to create one large enough for like a 16’ boat hull with high temps ranging 250-300 f?

If so what kind of things do I need? This area is not something I’m intimately familiar with.

I did simple 4x4cm metal frame, insulated with 5cm alu sided panels, heated by 2kw industrial blow heater and cover everything with 25mm wood boards.......still runing cheap ebay PID controler trought SSR as i was only using it for infusion post cures (60 deg).

Dimensions are 200x100x90

Next step will be Omega PID and perhaps one more heating/blowing element if needed (tho i plan to use low cure cycle for prepegs).