Re: C&C 30 / Yanmar Repower, Engine Removal
That's certainly a workable plan.. I think I'd attach a halyard to the boom at the same point as your lift.. the halyard will remove a lot of the bending moment on the boom, but it may well not be necessary. It would also take some of the load off a rigid vang if you have that.
Also suggest you remove things like exhaust manifolds, starters, oil filters, oil, etc.. anything that will reduce weight and reduce the size of the package you need to maneuver out of the companionway.
Will the footprint be the same? that will expedite all this a lot.
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)