Probably going to take some grief but. If I was going to start over I would start with a Forster COAX press. They're in stock at Brownells right now. Buy once and cry once.

Do I have to have it to make good ammo? NO but they have reputation for making great ammo and their design is really solid.

They don't make 280AI so I would get a Redding Competition neck sizing die set appropriate bushing/s trimmer Wilson appropriate bushing/s, powder measure you pick just get a good one, priming tool RCBS model 90200, universal decapping die. Components what I could find.

Loading for multiple calibers probably a Redding T7

Good luck and shoot straight ya'll