There are some window fitting specialists that come to you I had rear barn door windows and side door and other side done one slider all fitted in about 3 hours £640 all inI've no doubt better springs are available , I did look at the Eibach Pro kit 30mm but didn't know what the difference would be, same manufacturer and same drop ? Just thought I'd stick with what vw use as standard on the sportline. I may not even notice much difference with the 30mm drop, as the current height it looks like a monster truck !!
I seem to be limited were I live and I think custovanz is a bit of a journey, I've got a a 2 hour drive next week to have Windows fitted !!