If you think that just because that boiler passed inspection "recently" that it's just that simple to get that thing to actualy run again under steam, THINK AGAIN!
That boiler is much $$ and many man-hours of labor away from holding steam.
I've been in recent contact with those who know and trust me, the decision to go static was not made lightly.
And, boiler not withstanding, just "putting it back together," if that were the case, is not NEAR as simple as it sounds.
Belive me, I have a grasp of what it will take to get the VRR's #3025 running, and she was "not long ago" under steam, and HAS a certifiably good boiler. With THAT engine, it really IS more a matter of reassembling the parts that are already on hand, (oh, and some relatively simple cosmetic work, ie: new cab and tender modifications,) however, it will still require much $$ and MANY man hours of labor!
Bottom line, 501 won't just magicaly put itself back together! It would take a team of dedicated, experienced volunteers with sufficient funding and the TIME available to put into the task. While this is not impossible to see happen, it must be so before she'll go, and right now it just isn't.
"It belongs in a MUSEUM!"
-Indiana Jones