New tent ends for my hybrid

I would guess your local Keystone RV dealer. I do not think that would be something you would find just anywhere as they are specific to your year and model. However there are places that can custom make them based on your old one.

Here is one place to try.

http://bearcreekcanvas.com/Content/Pricing.cfm

Canvasreplacements.com is another tent end company.

I seriously doubt Keystone will still have new tent ends for a 14 year old hybrid.

I bought replacement canvas for a Jayco pop-up from http://www.canvasreplacements.com/ and had a good experience. However, I don't see what you need on their website. You may want to give them a call.