[slipdigby]

I havent got one sorry, but I have a suggestion.
Dig out an old computer tower if you or anyone you know has one lying around. Salvage the cooling fan out of that and link it to an old ni-cad battery?
Then just sit the thing on the motor/speedo between heats.
If you have stuff lying around like that may save you a few quid.
Does the job for me.