I know people love their high-quality equipment. But I built arrows for years on a simple plastic jig. They last for years. I sold the one I used as a teenager about 15+ years ago. I used it solidly for about 4-5 years & then less so. Sold it after it collected dust too long.
So when I went looking for another one about a year ago, I just picked up a simple Bohning jig.
For only about $40, it's hard to beat. With a couple swipes of wax on the clamp after each feather, I've never had any extra glue build up. If you want functional, a simple clamp like Bohning will do just fine for many a year. If you want "purdy arras," then spring for the fancier metal ones. They're better -- no doubt. But for half the cost, you can get a plastic one & spend the rest on more shafts & supplies.
For my carbons, I shoot them full length & load up the front. My gap at 20 yards (my max hunting range) is only about 4" -- love that. Aluminum and woods are much easier to work with if you're cutting them yourself. I'll just use a coping saw or whatever is handy on my woods. When I shot aluminums, I just used a metal pipe cutter. I hate having single-use tools so the idea of needing a specialized cutting tool just for arrows annoys me. Your personality will dictate what path you take here.
Have fun!