Thanks for all the help guys, wouldnt have had a clue where to start looking without your collective expertise. Its a nice tank, wish I had a bike to put it on but its a bit small for my Beemers! It will soon be on its way to another home via that auction site!
Much as Id like to build a bike around the tank I dont think my other half would be very easily convinced! "I got the tank cheap so I might as well buy a bike to go with it luv" ;)