The 150 ADB hack is fairly well documented, so that's no worry.

How are you going to get Video off the 150, a SCSI Video Adapter? :?:

I think you probably need to start looking for a 9" Grayscale VGA CRT and the adapter. AFAIK it'll still be B&W, but it'll work.

If there were a way to drive that blasted 9" Periscope, the SE/30 crowd woulda' been all over it. :-/