Bill- I'll speak with Art to see where a BBC sits in there. It won't be until Monday since Art's out of the office.
William- The price for one of these chassis with tri-4 bar rear and C5 front is $12473. That is a fully welded chassis with sway bars, shocks (single adj Strange), springs, RE housing, Strange 3rd member with your gear choice & posi unit, 31 spline Strange axles, power rack (20:1 or 15:1 ratios), all the C5 components direct from Chevrolet (not used pieces), Corvette C5 brakes up front & Wilwood brakes in the rear.
With C5 front suspension, you will be limited to Vette backspacing on the wheels and will need to move the motor back about 5" to clear R&P, which aren't really bad things since you will have a very small scrub radius and killer weight balance
The price for this chassis with tri-4 bar and our IFS up front is $1056.00 that includes all of the above but with our IFS up front and brakes are our 11" disc kit in front and the SVO disc kit in the rear. Other brake upgrades are available. With the IFS you don't have the dramatic engine setback due to its rack location and have a larger variety of wheels to choose from.
Please keep in mind that these prices are for "standard" packages. There are things that you can delete to reduce the price and there are upgrades as well.
Hope this helps!