Pill, you're basing your "cannot do" list on an existing production SS chassis.
IF there is a Z/28 created and available in volumes greater than 500 units (which
WILL be the case), the Z/28 will come with "upgrades" over and above the SS...including most assuredly the
BRAKES...which will
NOT be a "useless" upgrade...
Remember that brakes, like horsepower, can never be "too much"!
As for the
Multimatic Mustang of Scott Maxwell and Co., look for them
up front...they have a certain
history with the FR500C that is enviable...and Multimatic is a division of
Magna International Inc. (do a google), who do
NOT suffer from a lack of either funds
OR factory support...
http://www.autoweek.com/article/2011...D_AM/110419995
Scott, to Mustangs, is kinda like Ron Fellows was to C5R/C6R Vettes...and coincidentally, both are Canadians who earned their stripes in the
GM/Player's Challenge Series 20-odd years ago in Canada.
http://www.playerschallengeseries.ca..._East_pics.htm