I've got a cylinder head off of a 318I that I'll be rebuilding tomorrow/next few days. Rebuild will consist of a degrease, cut and lapped valves, cut seats, and resurface. Includes full top end gasket set. Head bolts are available as well. $450. Email at Roughandreadyrebuilds@gmail.com.
If you're doing a full rebuild, I have piston rings, bearings, and lower end gasket sets available.