But have you considered how this is going to kill your your drivetrain especially the IFS? CVs have blown in the past just from mild street use with 35s. It may look cool but is it worth the cost/damage to the other componants?
If you just did it to see if they would fit and are not planning on running them regularly then more power to you. However if you are going to leave it and wheel with them, start saving $ and be ready to start swapping drivetrain parts
The 10" "Chebby" rim should fit no prob, a wide 12.50 tire may rub but nothing a Big Friendly Hammer can't fix.
I plan on running an 8" 15 generic black steel rim with a 33x10.50 tire. For my needs that will do the job. Depending on how often you wheel, daily drive it on the streets, or wide you NEED not want the tires to be, these should help you judge what width rim you need.
Go for how it functions not how cool it looks. Tire questions come up on 4wd rigs all the time. A good 4wd info. site should cover the topic well.