Lisle/Sunnen Hone

If this is the first time you've ever done this, pay the money and have the shop do it. You are going to have to remove a lot of material for a sleeve and between getting the bore round and controlling the taper (better have a bore gauge) there is a lot of room for a really messed up job. I've seen people go to 0.005 oversize with a hone and even that takes skill and precision.