Good track/street brake setup for 68 firebird

[Bonebuster29]

So im building a pro touring 68 firebird! Just got the mini tubs installed, going with prodigy bar for the rear suspension, Ive got a stage 2 DSE coilover kit up front, but my question comes on brakes. Ive done some searching and cant find what im looking for....
I want to convert to 4 wheel disc brakes. I will be doing some track but not alot so I dont need full race brakes but rather an agressive street setup. Are there full kits that I can buy that include everything or do I have to piece together everything? If so what are some good bang for your buck kits? Any advice would be great appreciated!

Not sure if this helps but im going with 18inch wheels...