I understand that you, as a reseller, will compliment Frank's work.
Welding points of kWeld are on the level or slightly better than welders based on MOT 2x1kW.
Of course, even on very good transformer-based welders, we always have 10 percent or more of poor quality weld spots. I've seen this countless times.
With all due respect to Frank's development, I have not seen here on the forum good welding spots on pure nickel strips. The nickel plated steel cooks perfectly. One of my colleagues is very pleased with the ease of use. However, it welds 150 μm nickel plated steel and has excellent points. Therefore, I made a choice not in favor of kWeld, which is incredibly happy. Therefore, under the same conditions, we will make different decisions. There are quite decent Chinese samples for $2-2.5k.
Most do not distinguish between what is acceptable to them personally and how it should be if they do it for a living. When you risk your own property that could be damaged by fire, this is one thing. And it is completely different when you sell what you create. In this case, you risk not only your reputation, but also your bank account and, in some cases, your freedom.
The Omega PA250i was never a laser, it's a MicroTIG. In addition, the laser costs like the one on your photo, about twice as expensive as you mentioned.
I myself am very interested in conducting a test with copper ribbons. But now all my time is occupied by a project that has nothing to do with electric transport.