Following up, my wheels arrived and were installed on Friday. The tire shop had no issue mounting them and the rims made it convenient for them to use adhesive lip weights on the inside edge of the wheel to easily clear the calipers. I'm so very stoked on the look which provides a bit more concave and just the right amount of lip. They are mounted on BFG K02 285/65, which is just under 33". When I end up replacing them I'll probably go with the same tire, but with a 305/65 or possibly a 34x12.5 to fill in the wheel wells a bit more.
Lastly, I have a set of Level 8 MK6 18x9 +0 in matte gunmetal, MINT CONDITION, that I'm selling for a song ($400). DM me if you're interested. But for now, here's a pic of the XD 143 RG3 in 18x9 +0 in satin black:
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