You’re kidding right? You have $500 to spend! That doesn’t even buy one light from a reputable lighting manufacturer. Considering your budget be thankful if you can find anything. As the saying goes “beggars can’t be choosers”.
USED LIGHTING.com has a few Altman #65Q 6″ Fresnel fixtures for $89. Buy 3 of those to get yourself started. Use the rest of your budget for used c-stands and accessories.
The bulb blew up. It’s not uncommon. They’re under high pressure in a compact glass envelope. Replace it. Be sure not to touch the new bulb with your bare fingers.
You’re best bet could be the Lite Panel 1’x1′ “Low Profile” LED fixture.
You should also look at the Arri Locaster/Broadcaster fixtures.
Mix with Kino Flo 2 lamp x 2′-0″ fixtures.
What are you using FULL Plus and Minus GREEN for? That’s a lot of correction!
Simple logic……You can always make FULL from two halves. If you only have FULL — and it’s too much (which is very likely) — you can’t make 1/2 or 1/4 out of it.