Thanks for all the responses guys. After a few PMs it seems to me that I wasn't getting across what I was trying to so I took a couple of photos with the BH, PB and trans in place but no clutch mech so that what I was trying to explain, I could show. This first pic is through the starter opening in the BH and you can see that the splined part of the input shaft is up against the pilot bearing.
The next image is looking at the gap between the trans and the bellhousing with the input shaft grounded as in the first pic.
As you can see there isn't much of a gap there and the PB isn't sticking very far out of the back of the crank. And I'm not using a spacer. The car is at BDR right now but when it gets back I think I'm just going to have about .250" machined from the front of the spline on the input. The disc will still have plenty of room and the trans will then seat in the BH without any pressure on the crank.
Am I missing anything guys? Steve