???buy a bently manual and do it your self,,,its not brain surgery,,and definatly not worth letting the car sit and "wait" for some unseen engine swap..which in the end would cost you thousands more then paying someone to do the head
yes you would need a new computer(about 2000$ brand new),,,different motor mounts,,some custom fabing for exaust,,ect,,ect,,ect it would probly end up costing you at least 4000$,,i say just fork out the cash for bmw to do the head,,or better yet buy a 30$ bently manual 20$ gasket 20$ head bolts and do it your dam self,,if you can research engine swaps, then im sure you can research the much easier subject of head gasket replacement
1983 dogde diplomat es police special 40,000 miles
1996 chrysler sebring peice of crap money eater
1963 chrysler newport wagon in boxes "for sale"
1973 opel gt little red rocket project
[B]1984 BMW 325e 120,000 miles perfect interior near perfect exterior,bought it,,,drove it home,,,went to work,,on the way to work timing belt broke!!!only drivin it 12 miles ggrrrrrrr