Ah I gotcha,
I have some experience a little with cane shafts.
Try cut the ones as straight as possible, if you need to straighten them heat will help. You need them to be straight enough to spine test them.
Match the spine within groups which means you need to have access to a spine tester. Also mark where the spine was tested as this is where you want it against the riser or as the cock feather(can be different as you go around the shaft)
You need to roughly match the thin vs thick shafts, its very possible to have a big fatty shaft be the same spine as a skinny shaft. If they are naturally tapered the skinny side should go to the feather side. I would strengthen the nocks with braided fishing string if you are going to cut into the shafts.
Lastly you can weight match them with a scale.
Problem with bamboo is the nodes can be very large and the shaft will lose strength if you sand them down.
If you can get your hands on "Tonkin cane" the nodes grow very flush to the shaft. I believe amazon sells them from a company called "tiger shaft" them come spine tested but you will need to straighten and weight match them, water proof them. They are fairly inexpensive but require work.