955i engine needed for my 2003 sprint st

Peeps over the next month or so whilst on your travels if some one see's a sprint955i engine lowish miles going for the right price please let me know as mine has blown either head gasket valve or something nasty as the air box is full of oil. Thought if I could find a replacement it would give me more time to check this one out it is the second generation engine late 2003 2004 or 05. I would be very grateful.
Regards
Joe.