WTB: thermostat housing

[guibo]

looking for a complete m20 thermostat housing (late model). i would also take the rear head coolant pipe if available.

numbers #1 and #7:

http://www.realoem.com/bmw/diagrams/b/f/4.png


and #15

http://www.realoem.com/bmw/diagrams/a/j/3.png


mine has corroded through on the pipe mating surfaces. i want something with no corrosion/pitting.