http://cgi.ebay.co.uk/Witter-Towbar-TOY ... 2ea2288b7e
Westfalia swan neck £98.61
http://cgi.ebay.co.uk/Westfalia-Towbar- ... 5884322fc4
Looking at these they seem quite easy to fit and dont need the bumper cutting.
If you contact the sellers they can usually give you a price with all the electrics and send you the installation instructions to look at.
It took my bro and me about 1 hour to fit and wire up so not to bad with mine.









