The modular rests do come unscrewed, until, like in my shop from all the wet wood I turn, they rust in place, which kind of mucks up the modular part. I never cared for the round bar tool rests, they just don't 'feel' right, in part because as soon as you start to drop the handle, your pivot point moves away from the wood. You could make your own. 1 inch post, preferably cut to about a 15 degree angle for some lean, 1 1/2 inch by 1/4 inch cold rolled bar stock, and you can epoxy A2 (there is O and W drill rod also, but A2 is the best) drill rod on top. For sure in the beer budget range. The A2 is supposed to keep up some hardening just on exposure to air. It isn't as hard as the 'hardened' drill rod, but still better than straight bar stock. If you pay to harden the drill rod (local black smith should be able to do small amounts) welding it on does not seem to change the tempering of the rod. There does seem to be a shortage of drill rod right now. Been trying to get some for some rests I am making and suppliers have been saying, for months now, 'it should be in next week'...
robo hippy