Pulling comps for a mix used property

[Anderson Hargrove]

I'm looking into buying a mix use property. Upstairs is a 2br house while down stairs is a commercial beauty salon. The upstairs needs to be rehab while the shop needs little to no work. I'm very interested because my wife does hair and can run the shop. I was wondering how can I pull comps for this property so I can get an idea what to offer and what I can pull out of the equity when I refinance