Thanks for the suggestion - "willy-nilly" isn't in my nature, lol. As good as it's sounding right now, "not at all" is more likely.
As i said, doing it myself isn't an option for me anymore - my hands are just too shaky nowadays. My curiosity makes me lean toward replacing/repairing the crossovers, but I also doubt it'll sound better than it does right now, so I suspect it would be a waste of time & money. The only other issue is that the damage they do to the HF sound quality makes me wonder if they're also damaging the LF frequencies going to the sub driver, but I have no way of knowing that without replacing/rebuilding them, I guess...