Found WTB: Omega Super Chromega D Dichroic II color head

I just acquired an Omega D-6 and I am looking to make this a color enlarger and pair this next to my D5XL that I use for B&W. Looking for the mixing chamber to allow printing from 35mm to 4x5.

Preferably in the EU, but will consider other sources as well.

Thank you in advance.

-Doug