HEL Performance Products in the UK makes replacement hydraulic hoses for the Cabrio or for that matter any convertible
Website is as follows http://www.cabriolet-roof-hoses.com/vw-golf/
this is the same company the makes high performance brake lines for motorcycles. The cost with shipping to the US is about $70/line and is definetly a better product than the original from VW. I just ordered one today I'll post how it goes when I install. I hope this helps people with similar issues.
I got the hoses in about 5 days, they fit perfectly and are of much better quality, since I was replacing one and didn't want to worry about it with the rest of them I ordered all 4. I emailed them about a deal if I ordered all 4 and they gave me one for free. So I was able to get the 4 hoses for 120 GBP which converted to about $190 USD with shipping definitley much better than the $300 cost of one hose in the US. Hopes this was helpful good luck