I see that you already did the relocation, so this advice may not be useful for this specific project.
One of the most common mods in N64 portablizing was to take a rev 1-5 board (may have only been up to 4, as I may be confusing this info with the RGB mod which also became impractical either at rev 4 or 5), as these have dual 2MB RAM chips. In their place, modders would put dual 4MB RAM chips, effectively creating an internal Expansion Pak. This may have been more practical to do when portablizers had closets full of broken N64 boards, with functional RAM chips to be reclaimed, and when OEM Paks and late-revision N64s were dirt cheap. Following the swap, one would do a Jumper Pak relocation which is necessary to terminate the RAM circuit and is significantly easier to do than an expansion relocation. These realizations can easily be done towards the center of the board which leaves trimming room.
Because you've already completed your relocation, I'd say that if it ain't broke, don't fix it. However, you may run into problems from the added latency of the copper wires, depending upon the length, variance, and diameter/surface area of the wires, and the tolerance of the board itself. Generally earlier ones are more tolerant, and every modification will further reduce the tolerance a little bit.
So, make those wires as short as you can get them for your needs, but keep them all the same length, and quadruple check that all your connections are good, and that there is not a single bridge. Say a prayer to the deity of your choice (atheists should still do this), clutch a rabbits foot, say something in Latin, and fire her up. If it works, I'd still suggest a stress test: a couple hours of DK, MM, or Perfect Dark. If all goes well, Congladuration! If not, let us know. I can contact
@βeta and/or
@Bibin, both of whom are experts in this sort of thing, if you have any further questions or issues.
Also, to my knowledge, I'm not aware of any veterans familiar with this process on BitBuilt beyond SS.
