Looking on Sixmaps gives you 3 properties
Melrose Park
Moothi Estate
Opal Downs
The first 2 can be googled (with Mudgee on the end) and contact details found.
It is a short walk, six maps shows an easement of some sort from Moothi Estate.
They look to do wines .. so maybe a purchase with the walk?
Melrose Park look to do airbnb .. an overnight with a walk?
Mt Frome itself looks to be some kind of reserve/park. A contact with the local council might give some more information.
A google gets;
history
http://www.mudgeehistory.com.au/Mt%20Frome_p1.html