Finding comps in a nondisclosure state.

[George Shetler]

I live in montana which is a non disclosure state. Which means when you sell your home you dont need to post how much you sold it for, which it seems no one does. This makes it very difficult to run analysis for offers due to me having no idea what the ARV will be as well as the sellers asking price compared to the guy next door. My question specifically is this. Where can I find these prices for the homes besides the MLS? Also, if the MLS is the only reliable source how can I use it without bothering my real estate agent everytime I run numbers on a deal? Thanks in advance. I'm sure this is really basic but I can't seem to wrap my head around it.