Hello Daniel,
Sounds like a nice place. Most of the people I've meet are looking for the Aude though, I believe prices are a bit cheaper down here, the Bezier area is supposed to be completely insane.
As regards someone to do showings, have you tried your neighbours, or Living France - Moving to France and owning French property ? For a private sale, you can put a classified on The Languedoc Page (peter who runs it lives in the languedoc and is a mine of useful information too, and he posts here).
Do you work in France or do you commute back to the UK?
I work remotely from here for a multinational and get paid out of the French office, it works out pretty well for me. I pop back a few times a year. It enabled me to move out here now rather than wait for retirement.
Regardless of what happens to house prices in LR - and even though I'm a firm UK bear I am still undecided about prices here as my post has indicated - the space and land I have here is pretty huge, and costs less than a 1 bed flat in the home counties where I came from, AND the mortgage rate is much lower.
Thank you
Drew