Assuming there's been little "new blood" from younger folk in recent years (may be a false assumption, but the apparent lack of activity suggests it), perhaps an exit strategy is in order. It's right "up the street": CSRM.

CSRM is a great museum, and even runs trains on a couple of miles of track (Sac Southern itself is history since there's no more freight business) where they don't bother the NIMBYs too much. Expansion capability for that line is virtually nil given community opposition. But they need a little more space for some things to stretch their legs without requiring massive negotiation with unwilling partners (especially looking at you, UP). They also have little in the trolley line.

So sell WRM to CSRM. I'm sure it's crossed somebody's mind. Reserve the right for BAERA to run trolleys (perhaps just on the loop if the main line is needed for other things) as long as BAERA remains viable. Get the vernal pool trains going again. With the collection now including a couple of relatively modern items (the Muni LRV; really, they ought to get one of SacRT's old VTA Mark 1 LRVs, too - they have more than they can use right now - and a Siemens car when Sac starts retiring them; and maybe they could get a copy of one of Muni's other retiring LRVs if Muni's History group & Mkt St Rwy are willing to give one up). Maybe a more vibrant or functional organization could promote some more interest in fixing and running and promoting (especially that last).

Plus, it's still far enough out in the country that NIMBY activity is limited.

Hmmmm?