Did you find one yet? There have been a few on ebay recently (see the links below). I got one a few months back that was pretty scuffed on the cover but otherwise good condition for $70 shipped. I recently picked up all of these (TW, TD, DM, LE) and have gone though TW, TD, and just skimmed DM and LE. Anyway, I just wanted to say that maybe the books are not worth the costs (unless you are just collecting).
A lot of the information in these is fairly obvious, especially the card reviews. Or some times it's just chart of information already known from the cards. Or, they will spent a page telling you how Marvels Told is a BIG DEAL ("OK, we all know that now"). But the beginning sections do have some interesting parts. Like, they include neat comparisons of the Wizards and Ringwraiths. But any experienced player could tell you that. Or there are discussions on the old MECCG boards. The books do include some neat some sample decks (the sage+Riddle deck in TD).
Maybe at some point I'll try to skim the best information out of these and post it here.
Bent corner, starting at $50 But It Now at $100.
https://www.ebay.com/itm/Middle-Earth-T ... SwlkFdOQIT
This one with the companion at $150.
https://www.ebay.com/itm/Middle-Earth-T ... SwUGddNeJi