First, thanks to everyone who's offered suggestions and help. It's greatly appreciated!! At least I feel like I'm not too far off the mark.
(For a little quick background, this truck was abandoned outside in a storage area for over 1 1/2 years before I grabbed it. Overall, it's in amazingly good shape for being 18 years old, and maintenance records in the truck lead me to believe that someone took good care of it before abandoning it. Because it was setting for so long, I'm more willing to consider more extreme measures to remove any other problems that might come up. So far, other than the stupid brake line, it's not been bad - runs good, drives good, etc.)
Here's something I've been thinking about(and it's always dangerous when I start thinking) - there are 2 scenarios that play out for me.
First, the bleeder pops loose, everything is all good, brakes bleed and we're all done!
Second, something happens to the bleeder - crushes, breaks, whatever - which means changing out at minimum a bleeder, if not wheel cylinder or more.
For the first scenario, that would be the ideal and simplest. However, on this truck, nothing has been simple, so I'm not holding my breath. On to part 2 . . .
The second one I suspect is more likely - something is going to happen to the bleeder and it will require significant effort. Of course, if it's as simple as getting the stuck bleeders out and replacing them, great, but should one break inside the cylinder
So, with all that babbling, I've been thinking about just replacing both calipers. They're not that expensive, would be 2 bolts each to remove(after compressing the piston(s) ), flare nut and then bleed and be done.
With all the other stuff that has happened with this truck, I'm thinking that might be money well spent - not to mention time and effort saved! Anyone else crazy enough to go to this extreme???