That certainly is one sharp looking machine. I have seen her in person.
My favorite at the Railroad Museum Of Pennsylvania in Strasburg is the Mountain Locomotive #6755 out front.
I don't "DO" Facebeook.
While your son's endeavor may be noble, I don't think it is very noble of you to ask that anyone "like' his page to promote his efforts {feels like you are demanding the way you say "I really need you to "like" his page"} .
NOw setting up a website, with the blessing of the Railroad Museum of PA, or having them link to his website page asking for contributions to preserve her or whateve he is looking for, will get far more accomplished as not everyone is on facebook, nor wants to be.
Just some food for thought.