I had planned to use the stock Camaro swinging pedal assembly, but I don't want a firewall mount booster/mc. I figured it would be no problem using the stock clutch and gas pedal, removing the brake pedal and replacing it with an under floor pedal. That way I could use the hydraulic clutch assembly, but someone told me I should use both under the floor or both swinging...any reason for that?

Looking at under floor power brake/hydraulic clutch assemblies I found 1 for $530?...I was hoping to save some money using Camaro parts though and I don't know how the clutch would work w/o stock parts. Any thoughts?