broken tip repair

Hiya folks. Last fall when I was putting everything away for the year I crunched the tip of my 7wt in the screen door. I'm experienced with rod building, so I'm going to give repair a try. I measured the OD of the rod at the break and it is .11". What I'm thinking of is sliding a 1" long .11" ID tube over the break and epoxying it in place like a splint.



Question: Anyone know where I might be able to track down the small bit of tube that I want to use for the splint? I checked my usual rod building supply stores but they don't carry much for repairs.



Thanks!