One thing I'm curious about is x86 emulation for 68k mac under shapeshifter or fusion. It could give a few more options. From my browsing a few months back when I looked into it there was Softwindows, one other commercial product whose name eludes me, and surprisingly a 68k Mac qemu port from a few years ago.
There may be others, but that's what I found.
Haven't yet got around to trying any of them though.
This had me look up Softwindows for 68k Macs, and it works surprisingly well on my Amithlon system under Shapeshifter. I haven't tried it on my A4000T yet. Version 1.03 appears to be the last 68k version before it moved to PPC and supporting higher than Win 3.1.