settling on '88 5kcstq instead of '91 200 or V8?

[TM]

Ameer,
Again, you're commenting on brakes that you don't have.
Have you driven all of these setups?
G54?
G60?
UFO?

The G60s, in my experience, are mushier (is that a word?)
feeling than the G54s (the brakes on the early '86 5ktqs
and the 4kq, probably your car as well) because the same
size master cylinder has to push more fluid in a dual-piston
setup. IMHO, hydraulically-assisted brakes in the type 44s
do not compare in pedal feel to a good vacuum-assisted setup.

The UFOs have big rotors- over 12" in fact. So your unfounded
worries about not having enough brake are rather silly- those
276mm rotors found on the G60s are nowhere near as large. You
need to go to an A8 rotor or larger in order to get a comparably-
sized rotor, which does not fit under a 15" wheel, which is,
I think, the reason Audi came up with the funky internal calipers.

Taka