Fantastic things, belt grinders. I was just replying to another person--my old man had a workshop that grew over years. It started with one grinder (some old motor he'd acquired in the 70s at a fleamarket)--he'd rig that with belts do run other things on pulleys. I think I'm going to have to start small---kind of tool that will do a few things and get me by for a while. I'll probably have to get a grinder and buff (carefully) with that. Though I used to grind routinely--old Mold A carbs, parts and generally nothing ever flew away. A few months ago I cleaned up rusty railroad spikes, hand held with a dremel. but a SE razor , my age, I will practice on a few other things as I'm rusty--been 30 years since I ground , wheel buffed.
Reading on here and other websites about making scales---that , for my mind, I would buy a scroll saw--nothing fancy but I can see how that would make fast work of the wood, ease to get the shape cut and of course it could do acrylic. I just acquired a bunch of old razors off the usual spots on the web--all great razors --will need edges built but no chips for about $30 to $40 each---Tiers Issard, Boker , Bismark, bunch of Wostenholm. Busy on the stones while the grandkids sleep.
A 2 wheel arbor powered by a separate motor via belt is really more versatile than a bench grinder