I will correct you! he supplied at least five Harley chassis. One a green one, I also drove, this went to Australia. There is one in Japan, one in the US (I transported it out there) and I think another, plus a red one here in Sussex somewhere, used to be in Heathfield. It wasn't that well thought out with a heavy Ford Cortina 4 speed gearbox and heavy flywheel and clutch pack.
I too build Moto Guzzi engined three wheelers at
www.aerocyclecars.comOn my bench is a Harley 1340 Evo engine which at some stage will be mated to a Moto Guzzi gearbox with a much lightened flywheel and single plate Guzzi clutch. I look forward to this possibly later this year.
The Moto Guzzi drivetrain is simple but necessitates an off centre drive shaft. No point in introducing a heavy 35KG gearbox as per the MX5. next advance is the Guzzi 1400cc engine and gearbox, and that'll be a flyer!
regards
Arthur