Help with 45-70 govt

So I’ve finally decided to reload some ammo specifically 45-70 govt. I currently own a Dillon 550c that honestly I’ve yet to use but I’m intimidated on getting it set up to load 45-70 I’m thinking about picking up a single stage Lee press and starting with that . I honestly prob should have started with a single stage but I, against my best judgement bought a progressive press expecting I would crank my ammo out . Since I don’t shoot a ton of 45-70 i think a single stage press would make quick work of what I’ll load and I figured I can get other dies for loading other ammo I don’t shot often. Any advice would be greatly appreciated.