Thanks for the kind words. I'm in a holding pattern waiting for an engine. Once that's cleared up, I'll mount the rest of the tires and get final clearances. It sounds like your 17x9s are wider than my fronts.
I share Bosswrench's concerns about wheel flex. Clearance issues include:
1. Muffler bracket: ~1/2"
2. Brake lines: Stock brakes with SS lines rub the inner wheel wells. I'll look for fittings until I do a brake upgrade.
3. Valves: The flush Mr. Gasket valves work, but require an adapter to fill. Since the valves on the wheels are in-board, I may have to remove the tire to check/adjust pressure. I'm hoping the 83deg values are an answer. They are better quality than the cheap flush valves.
Initially, I was after PE Campys, but after 3-4 weeks, it became clear that they were not an options. At that point I went direct and got wheels with significantly different rims. I'd say the centers are campy clones, but the rims are very resto-mod.