Mojavejohn...!! Thank you for the complements, she's on the right track.
The 34" x 10.50 R17 BFG's are about .75"-1" bigger than a traditional 285/70R18. The new 2016 Taco's have bigger wheel openings, I've seen a few guys over on tacomawrold.com with a 285' and no lift. Do you plan on running this size in a stock Toyota wheel..? I ask as im not 100% sure the backspacing/offset will work. I guess if the 285" on a stock Toyota wheel works the 34" should as well. I would defiantly give it a try worst case sell them..
Pelfrybuilt...
Where do I start.. They are amazing, Mrs. Satin & Mr. Tyler make an excellent team. They will go above and beyond for there customers, if they ever start to offer stock shares in the company am in like swimwear. I love the rear bumper, it takes the Taco from a mild built 4x4 to a full dedicated wheeler, not that its not but it just makes it look 100% more capable..!! It's by far one of my favorite modifications. It is a "can't go back now" type of modification as you are cutting the bed, but once its on you'll never want to sell the Taco.
I have the Pelfrybuilt IFS Steel skid plate, when I bought it I don't recall they had the Aluminum version out..? I have heard a few guy loving the light weight and heavy duty feel to the Aluminum version. If I was to do it over I would go with the Aluminum version like your thinking of doing.
On a side note, I do have my Wheels & Tires for sale. They have very few miles on them as I don't Daily Drive my truck. If your interested send me a P.M. will work something out.