What`s it Worth?`86 K/30 3+3

[special-K]

There`s this`86 Chevy CustomDeluxe/30 SRW 4wd Crewcab for sale.It was a Navy vehicle,then a Police Department,plain-Jane,rusted rockers,and not too pretty.It has a 350/TH400/4.10s.He`s got his price or offer on it.It seems in my general area vehicles go for more,bodies hold up worse,yet no one wants to pay out extra because a vehicle is rustfree from a rustfree place.A strange area.Now,an`86 or anything in that bodystyle,I consider to be a classic in the making.It`s an "older" style,out of the "late[model" loop at dealers,but not yet so hard to find or unusual to be considered a valueable classic.I mean,these are the true value years.
Anyway,without pictures,just use my description and tell me what you`d pay for a truck like this.Let`s assume the mileage is getting up there by the looks of it.