Man alive I miss my old minis 
If they didn't cost an utter fortune, i'd love to run one again. My last one cost £120, now it seems you can't get them under £2000 - and even those are utter sheds 
Try going to Paul Crowson truck repairers in march, ask for Rob, he buys, sells and restores old mini's, chances are he could get you one cheep.
If you want to go see him, drive from Peterborough towards march on the A47, turn right at the roundabout at rings end, follow the road for about half a mile and just after the 50mph signs there is a turning on your left going down an unmade road, they are the barn at the end.