another 'slant' i'd suggest, is to use a C5 motor on the buggy - and flog it to lazy roller skating chav mums
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the wheel if available as a spare would obviously be very interesting (assuming similar in original C5 size), but the forks would be of little use imo due to the angle of the pivot, any conversion would still require lugs to be welded to the original forks.
regs
alan