tci's standard truck frame is a mustII front, brake booster and flipped rear axle w/drum brakes on leaf springs.
basically same as what i did to my 58 truk for $2530 vs $8333 plus shipping for the tci chassis.
imo, that would be crazy.
fatmanfab.com: mustII hub2hub, ss arms, standard springs & shocks. current price = $1895
junkyard 82-92 trans am rear axle, 3.27 ratio, posi and disc brakes = $200
junkyard 2003 hydroboost = $85
inline tube ss brake line kit = $220
shackles, spring pads, u-bolts, center bolts, teflon spring liner, paint = $130
for a total of $2530
granted i also boxed my frame $100, new wheel bearings $100 and painted my frame (included above) (tci frame is unpainted)
but no where near the 8500 cost.
it all boils down to budget.
the savings over doing it myself paid for gm ramjet 350hp crate motor w/efi and phoenix trans 700r4.