Never been done in the UK to my knowledge, however the gearbox is similar so the only issues that you may have are ECU and looms etc.
Best to swop like for like, just to keep it simple and cost effective.
Alex.
Any lying around? Haha
As I linked you in an earlier post Clark Motorsport have a RevUp used DE engine for sale with 33K miles odd on it for around £2K.
Link: http://www.clarkmotorsport.co.uk/parts/Engine-%28Bare%29-u/113339