For Trade Canon 100 - 400mm EF Lens and 2X Teleconverter for Pentax 67 Kit

I have a Canon 100-400mm EF and 2X teleconverter version II that I was using for astrophotography, which no longer gets much use. Anyone interested in swapping for some medium format gear? Specifically, I'm interested in a Pentax 67 body and/or lenses.

Thanks.