That a2 looks like it was abandoned. Was it? I’d love to have that at the Ft. Chaffee or Camp Robinson military museums. We have a 48a5, a1, and a3 + a SGT York DIVAD.
They cabled three VTRs together to get it out, so I was told. Not at all the worst case of *muddy turret defilade* I've seen.
If things are wet enough to spin the tracks, you can usually pull one out, eventually. Otherwise, call out the Engineers with the bulldozers.
I'll nose around about finding you a display piece. Got a Duster to go with DIVAD?