Ableton Live Set

I have a bunch of hardware, but the hapax is so great I decided I could also work on a live set designed around it as well.

I thought it would be simple and perhaps even better, but immediately the issue is trying to figure out how to stack all the hapax projects into one ableton project and effectively switch between them for 10-20 hapax projects?

Two projects is manageable, but is this essentially all limited by 16 channels of incoming midi to sequence everything in ableton?

Any ideas?