Are there any companies that sell power p.c accelerators for the amIga 1200? What other options are there for upgrading the a1200, so that it can be used workbench 4?

i have finished to add some info to all update games of Vic20 and Amstrad CPC.
Now i'm working on MSX games. First tranche will be Cassette games and with new update i add Disk and cartdrige games.

Buit for now i cannot upload any games for technics problem with server.