Wouldn't it be easier and a more cost effective for people to find/purchase a LCD-monitor that has capability to Sync directly to those frequencies used by Amiga.. I know there's some models that can read numerous Inputs (like Composite, Svideo, Vga, DVI) and at least some of them Shoudl be able to do what you'll need without expensive (and picture smearing) middle hardware.
I'm not 100% sure, but IIRC some DELL models have these features and are not overly expesive.
