Very interesting car, looks nice. As a seller of high performance machinery in the past I found that one would really need to see the engine and details of the twin turbo setup. Horsepower figures from a dyno run would do you worlds of good in trying to find the right buyer. A track day video with corresponding good audio would be a well received touch.
160K for a Allan car is a really good deal. This car has some videos on allan's youtube. You can see the turbos here.
If I wasn't building one I would buy this one. It will be interesting to see what it sells for. Allan is a master of these cars. He can get the fit and finish on them to put them in a A tier class for built cars. I would put his most recent cars right next to ultimas new RS in terms of fit and finish, and you get way more options with Allan it seems.
But, we all know how much work it takes to get there.