I live in an apartment as well. I'm lucky that we have a spare room and no roommate, just my fiance and I. But a small woodworking bench I made (half made, currently the top still sits on plastic saw horses) serves me well. It's not terribly big. It moves around a bit, but not so much I can't deal with it when roughing out a bow. Instead of a vise, I use a screw clamp to hold the bow down, quick and easy. If you want an idea for a simple bench that might work for bowmaking, look up Rex Kruger on YouTube and his "Roman Workbench." It's low and easy to use and you could build one pretty simply just for bowmaking, don't even need to plane the top, and it could be a sitting or storage bench as a secondary application.
J