In case someone is able to run this beast, I'd appreciate an upload of the intermediate source files.
https://github.com/SilasX/QuineRelayFiles
The intermediate source files I've been able to generate so far are in /output_files:
https://github.com/SilasX/QuineRelayFiles/tree/master/output...
Edit: Direct link to the go file:
https://github.com/SilasX/QuineRelayFiles/blob/master/output...
Edit2: I ended up copying so much of what was already there that I re-did this as a fork, adding my contributions in two directories (installation and intermediate):
https://github.com/SilasX/quine-relay
So far I'm stuck at an issue with the Pascal compiler not accepting long strings, which can be fixed either with a compiler switch or by editing the source earlier in the relay.