I don't have all my info in front of me at the moment, but I'll answer what I can and look up the rest of the info...I should be around this weekend to update the answers below:
1. I'll have to check on quantity and brand of the terminal strips used. I know there are couple more double row terminal strips used throughout the car as well. The spade tabs that the wires mount to are separate parts and can be purchased as straight, 45, or 90 deg variations. For example, the terminals next to the Janitrol on the bulkhead have both a 90 and 45 spade connectors on each terminal, the 90's facing upwards and the 45's facing downwards. I've got more info I can post on these. I don't think the exact parts are available anymore, but people have made castings of accurate ones that when fully assembled are virtually indistinguishable from the real thing.
The wiring from the terminal strip next to the zero cans on the PS routes through a black corrugated duct secured by 3 purple clamps on the pontoon and then disappears into the 'void' behind the bulkhead where the car's relay/fuse compartment is. Nothing actually routes into the engine compartment...since he back window is removed this area of the car's interior is actually exposed to the outside elements.
2. The crossover tube that connects the two oil separators (w/ annodized blue end fittings was originally manufactured by Weatherhead, now a division of eaton. The correct end fittings are no longer available new so the only options at this point are to find an original NOS tube in a junk yard somewhere, or use a casting. The castings turn out surprisingly well and the color of the end fittings can be matched with Metalcast anodizing paint. I can look up the PN and post it, but I don' think any have been found in a long time.
3. The clamps that mount the crossover tubes to the separators are a "Marman" type clamp, I don't think I have the exact PN for this one. It's a somewhat common type of clamp so most replica builders find some that are close at scrap yards.
4. The orange/black duct that attaches to the bulkhead (is clamped to the elbow on top of the flux capacitor) is a corrugated exhaust duct, It's made by a few different companies, you may need to compare against photos to see which is the closest. I think I may have purchased from here in the past, I can't remember without doing some extra digging
http://www.new-line.com/hose/ducting...nal-wear-strip
5. The vented black boxes were a found item, I don't think anyone has ever found the exact part in the wild. The real ones were measured and photographed at one point and various people have made replicas. I bought a set from a replica builder a long time ago. The bases are machined out of aluminum billet and the upper cover is bent aluminum sheet with louvers stamped into it. I can take some basic measurements if you're just looking to get close.