I think the effort was being done on the 1634, it’s also a 16KB chip, but uses the same architecture as the 85. MikeC has been using the 1634. And I think TK is aware of my efforts. I PM’ed her about my on-going documentary here.
Hmm, so it looks like they replaced the no-name chip with a PIC (as well as some other mods). Outside of tterev3 here, I don’t remember seeing much adoption for PIC on BLF. I’ve never actually looked at any code for them.