That's odd, I have no issues with 4WD. I do know half the staff though. Also 4wd is now owned by the same folks that own: pro comp, smittybuilt, rubicon express, 4 wheel parts wholesalers, and several others I can't remember atm. Tires and wheels seem to be always on back order, they are made in batches, by size. I ended up with Mickey Thompson MTZ's because that was the only 35-12.50R15 in stock at the time I needed them. The only other option is to call around and see who has what you want laying around in stock. Big companies like 4wd, Summit, etc can buy a lot of 500 and be out quick. Then they sit around waiting on production to replace the lot.
Congrats! And they 8 looks sweet too!