I do not know if it would be possible oraffordable, but a new mobo would be nice. Something with an 060 and 4 or 5 PCI slots. I would think that this would eliminate a lot of the bottlenecks that you get with a1200 - 060 accelerator combos.
My price point would be approx. $300USD. For that price I would like to see a mobo with an 060, four PCI slots, three DIMM slots, and basic connectors (serial, parallel, IDE). I do not know if it would be necessaru to have all the classic vid & sound chips, perhaps a custom boot disk would allow you to go straight to a vid card.
Anyway, that's my two cents.