I did a search, and there is tons of information, but I couldn't find anything definite.

What I am looking to do is convert my 110 pre-accutrigger (left hand) .270 to a .243. I would rather convert it than sell it or trade it.
Besides a barrel, wrench, clamp, and go-no go gauges, what else will I need, and what kind of problems or issues can I expect?

Thank you!