no problem whatsoever
As big as you can find.
Yes, they will fit.
Not with out adapters. They have different bolt patterns.
no
no
None.
yes
not if you have the stock rims
P225/75r15 102s
Those tires will not fit unless you do some lifting and cutting. The biggest i know of that can fit on a jeep W/O lifting is 30 inch (roughly) and you probably would need a little bit of cutting for turning.
You can go as large as 31" tires without having to lift it.
yes