I would keep with the stockers. If you aren't lifted you may run into backspacing issues and most likely end up rubbing the hell out of the radius arms or your fenders depending on tire size. 10" is too wide to run on anything under 33's, so if you're planning on rolling on stock tires (or something not too much larger) forget it.
Remember everything you do as an action, always has a re-action. So you grab wider rims, now you need larger tires. Now that you have larger tires you need a lift and gears.
You can fit 35x12.5's on your stock rims, and I'd spend the extra money on tires before I blew money on rims for sure. You're only paying for extra width, which It'd be doubtful that you went with a tire too wide for your stockers. I mean if you have the money to spend, go for it. But remember you cant just buy and rims and tires and expect everything to work together.