Yes, that’s about what I found looking on their site and some dealers. It is not a bad price for running two COBs when you consider the cost of my parts and labor.
By the way, these are the wrong Vero parts for this approach! I just needed something fast and I will come up with a better design later, and the VERO 29 you pick will not matter. That will be a full switching power supply design. This is a passive design that just throws away the extra voltage. The best possible efficiency with these parts is a bit under 80%. With the other voltage options you could run a string of 4 of the low voltage parts and get 89% efficiency or 3 of the mid-voltage parts and get 89.5% efficiency. Mean Well drivers are 90-95% efficient because they don’t throw away the excess.
One thing that makes the passive design possible is that while the usual voltage is 120 VAC, it can surge as high as 132 VAC. If you were trying to run the COBs at full power, they would not be able to take the surge without some active current limiting. But I’m only trying to run them at less than half power for efficiency, so they can easily stand a 132 volt surge. They will just get a bit brighter for a few seconds.