Capcom 8 bit conversions

[RepairGuy95]

Figured there isn't much info out there.
Has anyone attempted for example higemaru on a 1942 board.
Or others?
I know a handful are possible.

 

[RepairGuy95]

Started my Higemaru on Vulgus donor.
It is the closest board to Higemaru, as far as I can tell.
Higemaru is vastly simpler. And single board.
Question is. What can I replace a 63s141n with?
I am used to modern pals. Any help would be appreciated.
Bonus, it should only use 3 eproms, and 3 of those discontinued pals...possibly 4. I think its unused but populated on higemaru.

 

[RepairGuy95]

According to mikes arcade it crosses to a 82s129A that A makes it special...
Open to ideas.

Edit: The old prom adapter exists!
Haha. Progress.