ktm lc4 supermoto conversion

[Dandeany]

Alright chaps, im after some help and advice, a friend of mine has just purchased a ktm 640 lc4 02 model, we want to do a supermoto conversion but have no idea what wheels, axels, spacers etc we need. Does anyone know what will fit or if any other ktm model wheels will go on? many thanks if anyone can help.