First of all, going to assume this is a $260 budget league, otherwise the numbers might be off. So...
1B Prince Fielder, $30
2B Jason Kipnis, $3
3B Brett Lawrie, $3
SS Manny Machado $3 (I know he won't have SS eligibility, unless he regains it)
OF Wil Myers $3
OF Starling Marte $3 I don't have confidence in Marte to be mixed league relevant. High strikeout rates with not a ton of power is a bad combination.
OF Adam Jones $31 I'd go for it; like you said, you need another good bat and that's the right price to see if he can maintain his improvements.
SP Felix Hernandez $25
SP Madison Bumgarner $3
SP Shaun Marcum $5, or Ian Kennedy $14, or Dan Straily $4 - of those three, I might take Straily if only because Kennedy is overpriced and I did NOT like what I saw from Marcum last year.
I've also got a $24 Yadier Molina
hell no, $11 Alcides Escobar
, and $5 Nick Castellanos he's going to be a stud
to choose from but the ones I listed are my current keepers heading into next year.