I have a 12' tributary raft, my distance...
I have a 12' tributary raft, my distance between oar locks is 63". I believe 8.5' would be ideal. Could I buy a 9 foot shaft and cut it down? since I only see 8 and 9 foot shafts.
You can definitely cut them down. They have a plastic sheath on the outside and an aluminum shaft on the inside. Be sure to cut it at the handle end (as you need the hole for the blade attachment on the other end). Be careful not to cut the handle as you cut the shaft away from it. You can then glue your handles back in when they are the desired length. (I do recommend however going with the longer shaft and trying it first, then if you don't like it, you can cut it down).