I Fitted aluminum wheel spacers bought on eBay.I bought a footbrake assembly complete with bracket and welded the bracket to the foot rear lugs on the frame.
Icut the foot board for the pedal.
I then used two Piaggio brake compensator valves front and rear all plumbed in with Venhill brake line components.
Brackets for the valves made with galvanised joist hangers from builders merchant.
Bike had MOT, sent weight cert from weighbridge pics and technical report written by myself explain that I had replicated the LT version with the exception of needing spacers to achieve the track width. Inc tax payment and receipts for parts. V10 plus detail change slip from logbook.
have pics if anyone is attempting same. Possibly rear indicators should be extended but I haven't.