first off, any reason in particular you're going with the 10.5's instead of 12.5's? just being nosey, really.
As far as the lift... most of those who are knowledgeable (this does not include myself... I'm giving you the answers I got when I asked the same) will tell you that 3" is as high as you can get without running into the major issues that come with changing your driveline geometry.
You shouldn't need to worry about driveline vibrations (caused by dropping the differential to a point much farther below the transfer case and thus increasing u-joint angles), so you will likely not need a SYE/CV or T-Case drop, which you almost certainly would if you installed a 4" lift. The same applies for control arms... at 3" you should be fine with the stock lowers (though some will recommend changing them out; if you can find a kit with greasable lower CA bushings, it's well worth the cost to add the extended lower arms).
You will need to do some work with the trackbars... if not, you'll find that the front axle will sit off to one side 3/4" or so. Most kits call for the relocation of the track bar mounting point on the axle (read: drilling new holes), but the best way to deal with it is to get an adjustable trackbar.
I'd also look to make sure your kit comes with 1) good reviews (many have poorly written instructions), bumpstop extensions, and gas-charged shocks.
Hope this helps, and good luck!
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yeah, it is another red wrangler....