My reading of the Origachip 18000 notice is that any 18000 with the BIOS board won't work.

No-one on the Forum has an 18000 and you really do need to make contact with Oscalr Dalvit at Hardstore or with origachip.com through their contact link and put this question to them:

"Is the 18000 incompatible with Origachip 1.25 if it has ANY BISO Board, or just a board positioned as in the website 'photo? Also does it matter if it is a GAP BIOS or not?"