I also recommend the rod kit (Hot Rods). You can rebuild your stock crank and save it for nest time. Make sure you have all of the tools. While taking things apart make sure that you are meticulous about keeping track of where every little piece goes, especially the little shim washers that seem to be everywhere. Some of those things are hard to see with the coating of oil on them. Use a lot of assembly lube. Install new bearings so you don't have to go back in next week. Freeze the bearings before you start, and heat the cases with a heat gun. Oh, and take your time, I did my first bottom end about 6 months ago, these are just the issues that I remember. It took about 6 hours for me to replace the crank using my local shops tools. Oh, and have a shop check the crank alignment before you put it in, whichever route you take.