Hello AJ, welcome to MLS.
I hope that you find help here.
Firstly, I would suggest for this site, re-list on the "Live Steam" section as there maybe some live steamers who only look there.
You need to let us know if it is used, or unused, and general condition.
Do some research and then come up with a price, but I would suggest that it being an early and single cylinder loco, that it maybe not be worth as much as you hope.
Other than that, I would see if you can find a 'local' live steam or garden railway group to see if they might be interested.
David Leech, Delta, Canada