It's finally built, and is 32lb with 1x9 gearing (rather than singlespeed) which is pretty damn light...
He's got Saint HT2 cranks, E13 chain device, Fox 36 Float forks lowered to 130mm, a lovely Thomon X4 stem, SDG seat/post and some Stan's ZTR Flow / Hope Pro II wheels I built for him, running Stan's Tubeless conversion on some large but light Syncros BHT 2.5" kevlar tires
Adam got out for his first ride and said:
"I rode swinley for a few hours this evening and loved it it rips round the trails. very very very maneuverable and quick down the trails love it. partly down to the weight, partly the tasty geometry and light wheelset"