Do you know the industrial unit 1/2mile after the dick turpin a long country road also you can get to it from the road after dick turpin its a farm they have big electric gates to get in.
here ya go, not quite as high as you want but £85 touch only thing i would say is get some tocktight and remove all the bolts one at a time and tocktight in as only complaint is they come loose but done mine and not a problem since,
o yea also some roll cage padding on the handle £8 burton's
http://cgi.ebay.co.uk/BLUE-ALUMINIUM...item2eab460086