OK gang, I promised updates and here they are:
I have product! Whoo hoo!!! The package arrived a while ago and I got everything open and inspected. The packaging was very good, all sealed in a durable tape. The bumper parts were very well wrapped in bubble, then fabric, then clear tape. The finish is outstanding - looks like chrome. The kit includes the bolts to connect the end caps to the center bar - note the square holes are larger than an OE bumper. I intend to work on the install this weekend (100 degrees forecast for here! ), I'll post more updates on that.
Here's some info on the timeline: I ordered and paid on 05/25, asked that the PayPal invoice state 1971 240Z rear bumper, no rubber, no holes. They complied perfectly. Shipping to TX was previously quoted at ~10 days. Tracking was not initially provided and they sent a followup email yesterday to check on the arrival and satisfaction (nice touch). I replied not yet, didn't have tracking to check. They immediately sent UPS tracking that showed delivery scheduled for today. The pkg. was handed to UPS in Viet Nam on 06/18 and leads me to believe their process is a make-to-order. That makes sense to me as they advertise a huge assortment of bumpers available.
Keep tuned to this station for more on this continuing story...