Sorry to hear you are "leaving" us, and so we won't manage to meet up for books etc etc.
However, my Rotary club have installed 2 (soon to be 4) "boîte à livres" in places locally, which we have to check for books on a regular basis, so I have a way to get rid of books now, and all for a good cause, though not yours!
However, regarding your post about removal firms. We used Bishops Move on more than one occasion, the last being at least 10 years ago, when I came here. When we moved from "that" house to "this" house 8 years ago, we used a firm from Narbonne, and they had only to move the big furniture, we did the rest (only moved 20 mins drive, and did not need to time the sale / purchase together), and that cost pro rata a lot more. Though we did need a lift to get some of the furniture out of the old house!
UK firms will often be very competitive, especially if you can fill them up on a return load!
ex W1, via 47 and 11 and now [just] in 34, equidistant from Carcassonne, Narbonne and Béziers, where I hope we'll finally stay!!