Do I land grab a few for the land influx? Do I play with the private market? Do I burn turns on exploring? What should I have at this point to have a successful finish?

Commie indy build

With less than 12 hours left you should be cashing your turns. I would assume you have a stockpile of cash to run your turns and have the food you need.

Set production to 100% jets and buyout your private market with any leftover money at the end.

I'm assuming you have your tech levels up.

I'll have to improve my tech game then because I'm definitely not adequately prepared on that category.

Just to confirm, is cashing just the process of going to the cash page and putting in # of turns?

Yes sir.

Why jets?

The military upkeep for jets vs turrets is slightly lower, thus saving you a bit of money over your final turns.