I would look for a good used older Craftsman, Atlas, or Delta or other major brand, wood cutting band saw, to cut blocks into scales. I have a metal cutting band saw, like the Harbour Freight one, and it would be very hard to cut 1-1/2 inch thick blocks of wood with any kind of precision. I recently found an old Craftsman 12 inch wood working band saw for $100.00 and it has a good Baldor industrial 1/2 HP motor on it, I did have to replace the blade guides, that cost $10.00, for materials, and a new blade, and made a rip fence. After some adjustment it cuts 4 inch thick hedge wood easily and very precise, with a prety smooth finish for a band saw. As far as sanding smooth after the cut, I use a Delta 4x36 inch belt sander, and a 100 grit belt, just apply even moderate pressure to the block or scale against the platen, and you can get prety flat, if not then use sand paper on a piece of granite, or anything that is flat. When using the sander to flaten scales, be carfull of your finger tips though, that hurts like -----. Don't ask how I know!
Dale