Better off keeping it and using it occasionally. You'd be lucky to get $100 for it. Rg
Taxid, did you mean extra tip sections? They often did, but most that I saw were for different weight lines...
Any insight as to what line I would use with it? I emailed a local guide and he said a 8.5ft "medium trout" rod is probably similar to 5wt/6wt. I can't imagine they were throwing weight forward floating lines on a slower action bamboo rod but I really have no idea. I know there are double tapers and level lines that are older style lines but I have no experience with either. The guide also said it would probably be more of a classic wet or streamer rod so perhaps the line doesn't really matter because I wouldn't really need delicate dry flies presentations or cast that far.
I use Cortland Sylk DT lines in my bamboo rods. They seem to suit the softer action rods better. I've tried many different tapers (I have about 30 lines in my collection) I'd probably go with the 6 wt just for ease of casting. As you said, you're not going to be making "hero casts" with that rod. I'm not a big trout fisher so, others may have better advice.Rg