I’ve built every kind of bow except horn and I’d say for a basic selfbow you don’t need much. Get some Osage, it’s king for a reason and you can buy staves on eBay or work a deal on primitive archer or the leatherwall. Primitive archer is a great resource and those guys are amazingly helpful. I’d buy a set of cabinet scrapers, get a farriers rasp, draw knife, little chainsaw file, anddddd a tillering string and a string at your intended length. Heat gun is nice to fix wobbles and flip tips. You can glue on tip overlays but I’ve made a few without overlays and used FF with them. Honestly a bow can be made with just a draw knife but the other stuff really makes it easy. I’ve got all random stuff old and new so if you find a draw knife or rasp on a store shelf then buy it. Oh and pencils and a tape measure for layout.
Ted at raptor archery has a great shop but there’s a number of skilled bowyers in our state. Personally on my deployment I practiced more with my flint knapping as a bow takes time and requires a vice of some sort and a tillering stick and I dunno. I was in Afghanistan and bopping glass bottles bottoms between patrols so a good bit different than whatever you’re going to do probably. Just don’t get it taken away, when we came back they made us leave behind so much stuff including stuff we brought over or bought in bazaars.
If you’re wanting to build a recurve laminated bow I just vote no. That requires a lot more tools and is more of a complete shop build.
If you’re not heading to Iraq or Afghanistan you can probably have staves shipped over too if you mess up! Billets and takedown sleeves are easy to work too.