Thanks again guys. I had some trouble with cabal-install dependencies on
Mint, but would prefer stable packages anyway. Mint/Mate is now stable as
long as I'm willing to start with 'xmonad --replace &' in a terminal after
login. Xmonad from XDG/Login might be possible (with first two files below)
if I start up a session manager and a bunch of utilities (in third file); I
haven't tried. I would like to try with LXDE.