The Monticello station still exists, it is now owned by the VanEtten Oil co. (VEO) . there is an historical marker in front of the building put there by the NYO&W historical society.
as far as the Sho Fu Den in Forestburgh goes I've never heard of it and I live in sullivan county.
I would recommend anyone interested in the O&W to join the O&W historical society, it's a great deal you get a collectible limited edition book and a collectible calendar. See the website for details.
Most people that can give you most all the information you need to know about the O&W will be at Middletown Railroad day in Middletown NY on July 29th