You should be able to do it yourself. There have been several threads on re-covering saddles in the C&V subforum. Remember to use marine grade vinyl (available at large fabric chainstores), which comes in a nice variety of colors. I did one for an older Motobecane Jubile Sport (navy vinyl was the original), and it came out really nicely. You just have to be patient in manipulating the vinyl and stretching it properly around the shape before beginning to use any staples. A strong spray adhesive helps, although I was able to use Gorilla Glue carefully and thoughtfully. I think that the total cost (including the glue) was under $8.

It's inexpensive and worth a try. Good luck. PG