Meindl do a wide range and they are wide.
The standard Meindl boots are fairly narrow at the toes – too narrow for me.
Like you say I know Meindl do a wide fit range, but I don’t know anywhere that stocks them.
Anyway, I’m another happy Altberg user. Have a pair of Tethera (comes in 5 widths and half sizes) which I have just had resoled, and my favourites, a pair of Nordkapp which are wide at the toes but narrower at the heel.