I'm pretty sure this Sopwith Triplane project was purchased by Philip Mann and was completed at Booker by PPS for Patrick Lindsay as G-BHEW.
It went to the USA and was badly damaged in Hurricane Andrew when with Kermit Weeks. I believe that it is now repaired and flying in California with a rotary engine.
This depends on whether the PPS project was started by M Alliott, which was certainly the supposition at the time.
All the best KZ8
Sopwith Triplane (Replica), N5483, Private