Well Denny I thought you might know about this. Mine was a mess inside with big globs of goo which probably had something to do with the wipers only going a quarter of the way before stopping.
As usual, I was heavy handed and ripped the gasket in the same place on top and bottom. I remembered that Flicken had bought up all the old stock after that.
Oh well. I'm not sure if I will send this off and get repaired or just go the new replacement electric route.
Thanks for your help.