Dave, if anyone here can do this, it's you. But just because you can do something, doesn't mean that you should. This isn't a "fix it or scrap it" fault like a broken spring pan; the car will still be useable if you do nothing. Like you, I'd be questioning whether the reward justifies the gargantuan amount of hassle this job seems to involve.
I've heard it said that one of the things which constrains our ability to be truly successful is "doing well something which we shouldn't be doing at all". I'm wondering if this is one of those things.