> That's quite a bit wider than the typical rocket
You can have two habitats connected by a center tube, like an I. Rotate about the center of the I. Or a habitat and a cable connected to a counterweight.
In orbit, you don't even need the tube, it can be a single habitat with retractable cables attached to a counterweight of useful material that isn't immediately needed.
You can have two habitats connected by a center tube, like an I. Rotate about the center of the I. Or a habitat and a cable connected to a counterweight.
It's not really necessary to build a wheel.