There are so many ways to climb the mast that you will have to do some searches. But you need to figure out if you need to be able to go up solo, or have help. Figure out a safety line set up, etc. But if you look at the typical kit that a rigger uses for solo, they usually have a bosuns chair and a 4:1 block and tackle set up, depending on how strong you are. On my boat I use a bosuns chair and someone cranks me up. But there are other systems out there. Mast steps, strap like ladders, gre-gre's, etc