I know the bike, I've looked at it several times. The build is new but he used to have a glass tank on it and the gas kept melting the tank and jelling. When I was there last the carb was off for cleaning because of the gas issue. Looks like he found an alloy tank, hope he changed the oil tank too.
The bike is very nice but I've not heard it run. Made from some parts from Unity it has a tiger (I think) head so only a single carb. If I recall correctly it uses triumph hubs and wheels that are steel. I considered buying it but I would have wanted to change too many things so I decided to try my hand at building my own.
It is a nice bike, someone will have a great machine.