@RGB, would it be possible to add 2 knobs on the HAS to control the V and H position of the image for non arcade CRTs as seen here? I could buy the one from Aliexpress but I rather pay to someone who knows what he's doing and that can deliver quality stuff. Maybe add it on the JAMMA extension harness?
I personally ordered mine from Retro Access (US), but Retro Gaming Cables (UK) makes them too. I'm sure there are more sellers people here will chime in about.
I'm not sure I understand your concern with a CRT. I have mine connected with a meanwell PSU (from that thread), and I've connected it to a PVM and two different BVMs without issue. It doesn't have to be a PSU taken from the inside of an actual arcade cabinet. Just needs to be able to provide 12v and 5v to the HAS to properly power it and the arcade board connected. And a few older boards might require -5v as well.