What to use to remove old glue???

[twilight]

I recently obtained an Arbour Models PRR J-1. The J-1 is mostly assembled, however there are some detail parts I feel I need to remove to fill in some jagged gaps the previous owner left. Mainly I need to remove the footboards which have been glued in place. Delicately!!! So I'm looking for suggestions on what to do to remove the old glue. Arbour Models I think are extremely rare especially the J-1 as I have only ever seen one other of these in a parts box being sold as incomplete. So, I can't afford to lose any parts. Any help would be appreciated.


Mark