If your doing pics in pm I would like to see, the plastic arches are the bane of my existence.
Yeah pics would be great mate 
No bother, I'm realising I have a lot of VW pic's on my computer!
I will just post them on the thread that way helps other folks for future reference.
I got after market wings as they were cheap and didn't have rust, nor did they look like someone had rolled them with a brick. However they did take significantly longer to make fit than OEM so use your judgement. If you can get good OEM, go with them. You can make your own rolling tool from a skateboard wheel and a widow maker jack. I used the cut card technique on this occasion as it was the best option at the time.

Outside after rolling

Sealed up goodness

Primered

I'll post up a pic' of the finished article when I get my car back at weekend. But the plastic arch locates in normal holes with 10mm speed fixings and doesn't flap about.
HTH's