There are quite a few aftermarket wheels out there in the ~23# range. 30# is a lot of rotating mass for a wheel, although the TRDs are undoubtedly bulletproof.
I'd love a set of Method bead grips but they are also crazy-heavy.
Just my opinion and experience.....but a SL/P-rated 265/70R17r rides and performs very nice on these rigs. I have 35K on my Wildpeaks (around 46.5# per corner) and they've been great in a lot of different environments (towing, off-road, snow/ice, normal highway use). They also ride nice at 32...