I have just untidily saturation welded some scraps that Chas sent me so I think with more practice it could be done better.
Thats good news ;D.
For those closer to where I live and cant get to coverman, electricDave has a mate that can "plastic weld" as well.
So between us we've got north and south of the country covered :)
Should help keep a few more c5's alive 8)