This might be a case where semi-modular is the better option, especially if budget and size are of primary concern. What about the Moog DFAM? It's not going to give you all of the BIA sounds, but does a lot that BIA doesn't. More hands-on, still within the Moog ecosystem since you enjoy Mavis, and it's a techno beast. You could always add a small-ish modulation/effects rack to compliment the Moogs...
Something to consider.