I have only bought a linkage from AC.net and manifolds from a friend on SBO.
Got the stuff sent to him and he bundled it up and sent it out as a "gift"
So ideally you want some one to buy it for you and send it on if at all possible.
What i will say is be a little careful of the EMPI kits available. I saw on the other day and to say the linkage sucked is an understatement!
First of all the hex bar was aluminium. I questioned by mate about this and he showed me an old one that was bent and rounded out. - Make sure you get a steel hex bar set up
The second thing was the pissy little extension that hooked the throttle cable up to. The bloke that owned this beetle was having allsorts of trouble betting full throttle. - I bought the AC.net Redline model. Down side is the filter base / hex bar holder is pressed steel and does not look as good as the CB cast aluminium one
Who to but from -
CB Performance $590 US
http://www.cbperformance.com/catalog.asp?ProductID=493
but the vents are 28mm which i reckon is to small. Should be at least 32mm
AC.net - $675 to $775 US
http://www.aircooled.net/new-bin/viewproductdetail.php?keyword2=FSK0020&cartid=0105200493576276
The AC.net will be better set up.
You might want to ring Carb Services in Burwood Sydney and see what a set of vents is worth 02 9747 4066