I'm confused by your lack of concern.
What has been retained is not worth having been retained. Many of the windows have been boarded over, much of the brick has been EIFS/stucco'ed.
Even the other side:
View attachment 666246
The stucco over the brick, windows exist on this side, but are completely ahistorical.
If you gave me a choice between keeping the above and demolition, I'd pick demolition every time.
What's left is unattractive...........err genuinely ugly, and completely ahistorical.
I get that organization may not have a lot of $$, but then they shouldn't have bought what they couldn't afford to maintain properly.
A historical designation should also have afforded access to grants from the town, the Legion is also a registered charity and could have fundraised for the work.
But I'm not going to fault them any; its just not worth keeping if this is what you're doing with it. Might as well build a new modern box that's more functional.
I don't know the condition of the building nor its interior appearance, but fixing the outside looks like 2-3M to me. That's a very crude estimate for historically accurate windows, and lifting the stucco and restoring the brick, and appropriate landscaping, and uplighting.
Full exterior likely requires a new roof by the look of it as well, so add a good $200,000 for that. (looking at the condition and number of layers, looks like a big job)
Interior is a question mark, but probably at least $500,000 and maybe up to 4x that for ceilings/floors/interior walls/lighting.