I'd say it *should* work in a relatively unexpanded A2000. Just need to route leads to /INT2 and /OVR.
Taken from his site: /INT2 can be found at pin 21 of 8520 CIA and /OVR at pin 29 of Gary.
...I say unexpanded because there seems to be quite a few (obscure?) accelerator boards that are incompatible with this device. Talking about 68k piggyback boards designed for A500/A1000 of course, but any 86-pin fast slot or side expansion cards share most all of the same signals. Guess someone should give it a try!
Here's a link to his page, where he successfully had one going in an old B2000 rev 4.4 setup:
http://www.students.tut.fi/~leinone3/ide/i68k.html