It sounds like you have the perfect rods to practice restoration on.
Before you start hacking away, why not look for a good book or two, or a website, about bamboo rod building/repair? It would be easy to make a mistake that couldn't be corrected. It occurrs to me that such work is like fine carpentry, i.e., like building cabinets or musical instruments, not framing a house.
Beware - you may be sliding into an expensive new hobby. I've built a number of glass and graphite fly rods, and I can't seem to stop!