You have a major problem with that roof and because of the seriousness of it, I would have professional body man take a look at it. It is not an easy area to fix and I don't think you can find new body parts for it. Water leaking in there will get down inside the A and B posts and will be working from the inside out. The only long term fix for that is to replace all the bad metal, that means above the blister line, Bondo will not fix that, just hide it for a year or so. Remove the rear splash guards and check between the skin and B post at the bottom. That is an inherent bad area for Bronco's due to the design of the splash guards. They have a gap built into them that allows mud and dirt to be thrown in that area which collects moisture which, of course, rusts out the B post and skin from the inside out. Check your floorboards, especially on the driver side. I had to do some major surgery on my truck and if you are interested take a look the the pictures at the link at the bottom of this post. Pull the floor rugs and check the condition of the floor from the tub to the fire wall.
It's is all doable, but the roof is a problem because of the curves and making new pieces for that area takes a lot of skill, (alternative would be to chop the top of the cab off, chop one from another Bronco in a junk yard and weld it onto yours. Other than that area, from what I can see from the pictures, it looks pretty good.
Re-size your pictures before posting to at least 1024 x 768, even smaller would be better. It makes looking at them easier and for some members on dial up connections large pictures become a problem.
Good luck,
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