May I ask what LCD monitor you are using with your CGA2RGBv2?
I have the Dell U2410 which will accept a 15KHz signal over VGA. I am only using this so far with an Amiga 1200. With most Amiga-to-VGA adapters, the display will have vertical bars. Fortunately, Edu Arana made an adapter that eliminates this.
I wonder how the CGA2RGBv2 looks though. Are there any unwanted artifacts? I would like to connect my C128 to my U2410 using the CGA2RGBv2. Sounds like I just need some good quality cables and an adapter to supply power.