give them a call ask them on the warrantee of the conversion.. its 6 month
i got that on my engine too...and i know what car my engine came from, the true mileage and that it was not from a front ended crash...plus i got all the original clocks and paperwork for it and i know the engine inside out
i really wouldn't want to put my trust in them or any company, I'm too picky and in my opinion, 5k for a standard 1.8T is a lot.. especially when you don't know any history of said engine apart from its probably come from a written off car.. They break VWs so its obvious the engines come from crashed cars.
Cant be arsed to quote older threads as i don't have the time but i recall Thomas spouting on about engines from front ended cars been no good loads in the past
Better of doing it yourself (if you can).. if your not confident its safe go get the work checked out by a reputable garage afterwards.. iv had mine looked at and people don't believe we did the work.. I'm sure those who have seen it can vouch for it too
in a nutshell, probably is reasonable price as its a big job. but for 5k you could have a low mile top spec lump under your hood if you did it yourself