It depends on how much snow were talking here. Ide say to get a set of all season tires. Like BFG's KDWS tires. They should give you traction in light/medium snow amounts. However, if its anything serious(more than a few inches), you aint going to move without snow tires or chains.
If you dont go out in bad snow, then just get a set of all-season tires. Then, save up for a spare set of wheels and DR's for when you want to go play. After theese purchases, just have a beer and call it a day.
I don't know what nitto's are like brother, but if they are like the friggin Kuhmo's I have....HAH! This is not a fun experience with solid axle mustangs and no damn snow tires. I have to drive like a grandma in the snow and that still has caused me to slide. Be careful!!!!!!!