Welcome to the rabbit hole....

I’d have put a decent manual at the top of the job list too.

For cast I’d make sure you have a decent chamfer to to prevent you peeling bits off your cast bullets, I’ve always found the Lee dies more than adequate and the collet crimping die excellent. The Lee case trimmer is simple and works, you can also mount it in an electric drill if you have much to do, but usually a quick spin in the fingers will sort it.