How far did you get with this in the end Geoff?

It looks like somebody else had the same issue at around the same time but on the other side of the pond: http://www.buildersdb.com/botdetails.asp?botid=4290http://www.buildersdb.com/botdetails.asp?botid=4290
Dick got the power through 90degrees using friction drive with a colson on the mags output shaft. Given he destroyed everyone at Motorama I assume it worked quite well..