Biggest tire that fits?

Ive read through the threads and I still can't find an answer....I've seen some great looking customized Taco's, but for some reason most people seem to leave no or incomplete details on lift height, rim size, rub or rub ect......

My plan is to raise front (5100 bilstein .85) and keep back stock height
So my question.....with a 17 x 8 Wheel, and a 0 to -6 offset (I'm between 2 choices)
....front skirt removed (4x4 sport access cab)

....WILL A 285/70 r17 TIRE FIT ??? or is 275/70 r17 TIRE THE BIGGEST ???

....I do want want to drive this truck with little worry...my OFF-ROAD is limited to dirt roads
ANY HELP HERE WOULD BE APPRECIATED...THANK YOU ALL

 

SENCOND QUESTION

Why don't the suspension lift/level companies post TIRE FILAMENT SIZE....I've seen sizes listed for other vehicles why not for a Tacoma?