Tonneau Cover Needs Repair

[J M Wagner <jmwagner@greenheart.com>]

My TR4A has an original Tonneau cover that is in great shape except for 
the zipper.   The zipper needs to be completely replaced.  Does anyone 
have first hand experience with someone that does this sort of work?  
Quality and price, of course, are the main concerns. 

I'm in Los Angeles area, but, of course, I could ship it anywhere in the 
country for repairs. 

--Justin Wagner