Loosen the wiper motor on '69 through '77 Broncos. This lets the front top "lip" rotate upwards without having to also move the top forward.
This extra space usually (but not always!) lets you move the top mostly up without having to worry about the rear stake pocket reinforcement braces bumping around and scratching the paint on top of your bed.
If you have the original rubber weatherstripping, you will likely have to cut the rear opening seal between the top and bed. Also, some original door seals were 1-piece too, so you would have to cut them around the rear of the door opening.
Whether one piece or two though, you will have to angle cut the seal at the top of the windshield frame where the top meets it.
And last, but certainly not least, if you're going to just remove the top for servicing or paint, you can remove the rear tail gate seal retainers (sharp metal ankle slashers) entirely. Or if you're going to leave it off for driving around in the nicer weather, you can leave them in place with the tail gate seals, but you should cut them off flush with the top of the tailgate/bedrail so they don't cut someone badly when they're getting in, out, or just messing about near the rear corners.
Otherwise, aside from all the previous good advice, it's all about taking out a LOT of bolts. Some are awkward near the front of the bed rail, and some are awkward along the windshield frame if you have electric wipers. Don't think it's an issue with vacuum, but haven't worked on those enough to know for sure.
Paul