That is a pretty good price, around $53,000. Figure $4000 to get it here and it seems worthwhile. I think I saw pictures of this way back around 1.5 years ago when they were fitting that motor up. Looks like a full cat system etc. to comply with regs, in the US we could ditch all of that and get a proper exhaust on it.
This is the sort of thing that makes you wonder sometimes why build one. Last month a CAV was sold for right around $55k, this one at $53, you can't build them for that kind of cash. On the other hand, the building is fun (most times) and it is a hobby, but the fact is it is hard to build a car for what you can buy one for used.