Like others have said, with the money owed and considering how good Zim has been prior to last year's disaster, you have to give him a chance. If he gets off to an awful start, then see what kind of production you can get in whole with Lind starting against most righties in a platoon. If that still isn't working by the deadline, then there should be bats available to fill the 1B spot. Easiest place to find a bat.
I think so long as he stays healthy that Zim is going to be pretty solid, and with Lind maybe starting against some tougher righties in a platoon, we'll be okay at 1B. I'm not at all predicting vintage Zim, but I think he still has the ability to mash and hit 20-25 HRs with a .260 or .270ish average. While I'm not predicting it, I wouldn't be totally shocked if he was slightly better than that with a full healthy season. He's 32, and while most think he's done, look at Nelson Cruz. He was an oft-injured guy until his mid-30s and then he suddenly started to stay healthy and hit 40 HRs a year. Not saying Zim becomes Cruz, but he can have a little resurgence in his 30s.