Thats a very good list, one more thing I'll add to it, when you run over-sized tires for any period of time the stock steering gear box tends to get a lot of wear. You can easily tighen it up, but if it is loose, this is a sign of a gear box well on it's way out.
First locate the steering gear box, on a Jeep it's very easy to find, look just in front of and under the grill on the drivers side, on top of the gear box there is a little nut with a screw in the middle, thats the adjusting screw, loosen the nut, tighten the screw until it's snug and then back it off 1/4 - 1/3 of a turn and retighten the nut without letting the screw turn.
The easiest way to check if this is the issue is have a freind rock the steering back and forth, watch the pitman arm, if it doesnt move when the steering wheel is moving, the problem is in the gear box. It's a very easy adjustment, make sure you dont take the screw out.
Also, now that you own a modified Jeep, it would save you a ton of money, time and grief to start becoming familiar with the components that are going to be the largest source of headache, so I'll leave you with a couple images to get you going down the right course, if you already know all this, awesome, if not, print the pics and take some time just to look around under there and learn whats what.
In this image you can see the steering gear box attached to the top of the pitman arm.