Probably a dumb question

Thanks, 

Kahlaudio was the type of place I have been looking for. Been on forums for years and this is the first time I saw it mentioned. The fact it is in Jersey and I am in Pa is a plus.

Paragon Audio in Ann Arbor, MI. They are online as well. High end used

Try “Whats the Best Forum” they have classified and you might also find some leads.

Not only are you looking for uncommon brands, assume the production on such may be very limited and the owners may keep the units for a very long time or never sell. 

You might want to set up a Saved Search on US Audiomart for the brands you are seeking. This will give you notification anytime something new is posted that is a match.