Another masochistic Brick lover checking in! I too have a Matchmatic, and really must get some film through it this year.
They are like hen's teeth here in the UK - I found mine on a market, and had only seen one other until a few weeks ago when, of all things, a bloke in a pub had one - he bought it for WW2 re-enacting (phrased like that, it sounds alarming, doesn't it?) as a US PJ. Probably hard for anyone American to appreciate, but you just don't see them here.
Adrian