Thanks for the suggestions guys,I'm fancying the 24v Cossie idea now,as if I can get 15-20 mpg that's 30odd on gas which would be fine.

Are there many of these about anymore as I'd have thought there weren't that many sold?

Thanks bj928,will do if it comes off,I've got no probs with the spanners or wiring so that should be a nice little challenge!!!