@Kai Robinson Great! JLCPCB are doing a free assembly deal at the moment too(It may only be if you haven't used their assembly service before though) If they work and you want to sell one on let me know
Was browsing back and came across this, Did these ever work out? I'm in need of a GLU replacement for one board and haven't got around to ordering the appropriate GAL's yet. Would be interesting to try these!
You can use the sprint layout file for the Macintosh SE Reloaded board to see where traces go - easier than poking around with a multimeter, blind - the sprint file is in the thread in hacks and development