Re: new rigging?
Just attach your new halyard to an old one (some kind of mechanical joint, sewing is good) and use the old to pull the new one in. In some ways this is easier with the mast vertical.
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)