Rural property question about arv

[Dale Ferguson]

Guys i have a question. I have a lead on a rural property in my area that i got from a bandit sign. The property has 4.5 acres of land and has a doublewide on a basement. Noticed there is 0 comps in the area. Houses are pretty far spread apart too. How would you go about getting an arv or would you use the county appraisal. Home doesnt need alot mostly clean up and deck and gutter repairs. Thanks gor any input guys.