I replied to your pm
But to answer the questions.
Axle choice and wheel tire combo are perfect right now.
Tires are 265/75/17
rims are 18 x 7.5
I do have a matching set of wheels that would match my current that I have on the FJ 16" Trd wheels and was thinking of going to a 285/70/16 tire to...
They are stabilizers i bought off amazon.
Look up valterra stabilizers 020106 they run about $45-$50 a set. Easy set up and has a ratchet strap that tightens things up. They are strong enough I can lift my trailer off the ground with them. Makes the trailer very stable.