I used to build a lot of clearwater blanks and I am sure that they went out of business. I have not been able to get them for quite awile now. I had an 862 steelhead rod that has been put to the test on hundreds of fish and lots of abuse. It finally broke on me last year. (ferrule came loose while I was casting spinners and the stress of casting cracked the butt section)

To answer your question you could replace the tip with something compatable if you get the right fit at the ferrule. The taper would have to match, meaning that it was a snug fit the entire length of the overlap of the ferrule.

I would think that you would be better off just replacing the whole rod. I do know that clearwater sold a 902/903 rod that had one butt section and 2 tip sections, one lighter and one heavier. If you could find someone with and extra tip you may be in business...

good luck...