Cheers Paul I'm contemplating earlies or may just go down the re-skinning route at this rate. I'll check the insides later to see if they are worse than I thought. Most off the suppliers are saying at least 2 months for containers to arrive.
I've just grabbed this from our internal system here: "Sold by the half metre, this hose has a 5mm inner diameter and is suitable for all Beetle, T2 and T25 models 1946–1998. This product is a flexible, black hose suitable for leaded and unleaded petrol. Good ozone resistance and resistant to oil and other contaminants found in and under your van or Beetle. With a working temperature rated at -40°C to +135°C this hose is rated to SAE J30 R6, R7, R8, R11 " Let me know if you need any more info than that and I'll see if I can find out if / when I get a spare moment Josh