Shane

I might recommend that you take the injectors to an old style diesel shop and they will do all that. Then check them on their tester for leakage and pressure setting. Be a new motor to start and run after. Make as much difference as the new rings possibly.
If you wish to spend your valuable time doing it yourself then be very careful. If you get the grinding paste(flour) in the barrel it will be curtains. Never to come out again.
The pre-combustion chambers always have cracks in them when old. Leave them alone and they will be OK if not visably failing badly. The head gasket holds them in tight. Do not use the heaters and the starter fluid together !
PS I did NOT SAY BORE the sleeves out. Just hone them to get the new rings to bed in and remove the funny marks. I have done an old diesel bus motor that had badly scored bores after a full seisure because of loss of water on the highway. I just honed the bores in situ and new rings. Had to file the ring grooves to get the new rings to fit and be free and working. I did it as I needed to drive it to move it etc, it had done some hundreds of Ks. Great starter after and no smoke etc. Put the heaters on for 30secs and go. I had to convince the new buyer some years later that it was a very second hand motor and should not be considered as good as it looked and sounded.
Jaahn