First thing you have to do is decide what wheels you want to use.
Some 16's will fit with the 12" systems.
For the 13" systems you probably need 17" rims.
They have templates on the Baer site that shows you how much room each system takes up within the wheel.
Gotta measure that stuff first and then pick a system or call Jack for more info.
I had some 15" T wheels milled down a bit and hope to run the SPORT 12" system on them.
I measured my milled wheel on Scotts 12" front brakes and they seem to fit so I'm hoping for the best.
Jack said he could add people to the GP after the initial order was placed but I would call him to verify that and pricing.
Save about 10% or so.
My system was about $1100 with a couple of options. Zinc washed rotors and slotted, didn't go with drilled.
Other options are lowering control arm setups and all, I went with the standard modified G body stock spindles.
System comes with larger 1/2" lugs but they supply the lugnuts too I believe. Comes with new braided steel hoses as well.
That's about all I know until the kit and my credit card bill show up.
Nice kits.