I just replaced my old DiNotte 600L with a new DiNotte XML-3. It's plenty bright, but it has the same flaws as the old 600L:
Weak cables that will break
Batteries that will lose runtime as they age (normal for most batteries)
Doesn't have a "shaped beam" like B&M lights, it's strictly a floodlight

On the other hand, it's brighter than any dyno-powered light (I have a B&M Cyo IQ and SON hub also), and DiNotte has excellent customer service.

I also managed 3.5 years out of my old DiNotte lights before replacing them, and at $289 for the XML-3, it fits your budget... and there's no waiting list.