He's mainly plan A because of the fit, the personality/leadership, and because he could come with Andersson.
Not really any other team that has a top 4D and 2C available, or even a bottom pair RHD and C. But you're right, the age is a concern and ultimately a huge factor why he they didn't sign him.
They unfortunate part is that both plan A and B have big '?' associate with them - do the Flames not sell and just look at making the playoffs? Do the Hawks agree to retain on Jones?
Ultimately it's probably best to prepare for disappointment. CMac will do something but it's probably closer to what Richard outlined with Bjorkstrand & Kovacevic (although I still don't think NJ moves him, that's just a fan trying to get asset value).
If Jones happened, I could see them trying to get Kurashev and/or Dickinson coming with. Maybe from he Flames they get Coleman instead, and Gourde from the Kraken for a TB reunion, but then there's very little $$ for D. As you said, nothing is straight forward.
It's too bad Miller is such an ass cause he'd be the perfect option theoretically.
If I have to guess, we overpay for Nelson, I don't think we'd sign him so I wouldn't want to go that route but maybe we can get him to agree to a decent deal. Then the question would be who do we target on D? Nelson retained + Jones is maybe the best option.
Ritchie
2nd
for
Nelson @ 50%
Mitts
Wood
Pick/prospect
for
Jones ~ 7M
Kurashev
+ another LHD
not even sure what that cap looks like, but:
Dru - Mack - Nuke
Lehks - Nelson - Necas
Kurashev - Drury - LOC
Colton - Parssinen - Kivi
Kelly
Toews - Makar
G - Jones
LHD - Manson