I guess if I were to dump Str 1 mod's worth I could get another mod's worth of Con? Going Kensai makes an awful lot of stuff dependent on Int and Dex, and having less than where I am on either of those is dicey. I've been trying not to really and truly dump Cha, even though I 1) never plan to invest in things (other than UMD for just-in-case and having lots of skill points to spread around) that use Cha 2) I don't expect it to matter.
Guess it feels a little exploit-y.
Regardless, rolling for monies: (4d6)[17] x10 or 140, whichever is better
Edit: P.S. MuffinMan is correct. Dervish Dance requires Weapon Finesse, although Weapon Finesse doesn't apply to Scimitars, which are the *only* kind of weapon to which Dervish Dance applies. AKA RAW, it's a pure feat tax with no benefit unless you use some other weapon until you get a second feat, and then dump the original weapon. Grabbing Slashing Grace instead of Dervish Dance, since it doesn't require 2 ranks in Perform (Dance), which made sense for my other magus but not for this one.