I am basing this on the OEM rim so I was looking for a 17x8.5. My problem is that all of the idiot-proof websites go off OEM sizing, which is only 18" and up. So I'm finding it super hard to find rims that I know will fit. I've got a few pinned that I think will work - SOTA, American Racing, and Method are 3rd party Co's that appear to make a 17x8.5 with 5x150 and a fairly large offset (18 to 25). But I have yet to find anything over +25.
The 5x150 with 110mm bolt pattern is also used on 1998-2007 LCs, 2008+ Sequoia and LX570, and 2007+ Tundra. You might look for anything compatible with those models and years, particularly the Tundra.