@Deweybee - ok here's your photo, and I understand you'll be taking more photos. Really tough to tell what you have without more pics, but when you have a chance to get more, it would be helpful to have some of under the hood, in the passenger compartment, floors front and rear, rocker panels, door posts, under the hood, etc. It would also be helpful to know if the engine is running or at least confirm that it's not stuck/frozen.
Having said that, I think I'm looking at a $10,000 Bronco, give or take $5k. In other words, if it's rusted out badly (i.e., worse than it appears and really needs a re-body) then you're looking at about $5k. If it cleans up nicely, maybe $15k? Again, I could be off here, but looks like there's some rocker panel rust on the driver's side and based on what you say in your initial post, it must have a fair bit of rust.
If you want to post your location, there's likely someone nearby who could inspect in person.
FYI - if you're going to try to start it after it sitting for a while, here's the process that I use -