OpenBSD 3.3 on a 4000 200 box.... any known gotchas?

While I am in the loading mood, I thought I might try loading
OpenBSD 3.3 vax on my 4000/200 critter.  It looks as if I will
have to pull a drive and drop in a scsi floppy for booting, but,
are there any other gotchas in getting it up on this particular
machine (boards that are known to work, or not work, etc.).

Thanks

Bob Keys