Buy a genuine holset kit
Make sure you have some tiny snap ring pliers for the bearing clips
Make sure you have some dam big channel locks for the compressor snap ring
Soak the hot side in some panther pizz a couple days before
Mark the housings orientation to the center section for re alignment
Mark the shaft before you disassemble it to get the compressor wheel and shaft lined up again. (some say they are unit balanced and that is unnecessary but I do it anyways)
Clean everything thoroughly.
Stay clean
Lube the bearings on reassembly.
Make sure the compressor ring on the turbine side stays in its seat when you push it in.
It is a fairy easy and straightforward process. There are some threads on out and about on rebuilding hx35 chargers which is almost identical in terms of rebuild kits.