The computer harness comes out to the engine compartment through the firewall on the passenger side. There was nothing that I was going to need from that harness, so I decided to remove it. The easiest way I found to do this was to cut all the wires as close as possible to the firewall on the engine side. Then, from the passenger compartment, I just pulled on the harness and it pulled right through the grommet. I sealed the grommet with a plug and some silicone, in case someone ever wants to return the car to a 3.8 CCC.
Before installing the motor, I improved the timing markings on the balancer, so I can easily check the timing without using a dial-back timing light. Just used the existing timing marks as a reference, and added marks to the balancer up to 45 degrees. The small hash marks are 5 degrees and the big ones are 15 degrees.
Before doing the install, I was convinced that the battery cable running to the starter was going to be a big problem due to it's proximity to the Hooker 3203 headers. I made an insulator for all the wires running along the side of the block to the starter out of two spark plug wire insulators to shield them from the heat. As it turns out, there is a great chasm of space between the block and the headers. Maybe this is unique to the 3203s? Maybe others had problems with SBO headers and clearance? I don't know, but on a BBO G-body with Hooker 3203 headers, there is zero problem. Even the starter is clear of the headers, and could easily be replaced without touching the headers.
Of course the transmission crossmember is a problem...