I've had a quick look but, apart from a few similar questions on other forums, I can't find anything about them either.
I did find their web site though - looks like a work-in-progress. The 22k mile engine is an early one (which is a bit odd in itself - I thought my '96 car was low mileage at 72,500 miles!) and doesn't include ancillaries, so you'd need to re-use yours. That's fine if they're all OK, but if the swarf in the oil got into your turbo then you'll probably want to replace that too (and the oil pump, and probably a load of things I've forgotten about too). That may bump up the price to compare more favourably with companies like API, TSL Motorsport, Scoobyclinic, Graham Goode Racing and the like.