I think that I've got the workstand issue figured out. I'm going to build a sawhorse with two fork mounts to hold the bike reasonably steady and spaced so that the chainstays and rear wheel will hang out in space. I'll be able to push it off to the side so it won't take up a lot of workshop space when I'm not using it. I built one like that before for working on conventional bikes and it worked pretty well - I just had to be careful with the design of the legs so the cranks wouldn't hit. Recumbent cranks won't have that issue.

The problem at this point is that I don't have my recumbent tandem yet so I don't know how long to make it.