i would be a little suspicious if the output would support a TTL CGA input, but who knows? The problem is those amazon converts don't really offer much in the way of support
the 5153 does not have a composite input either, so far as i can tell? which would mean you can't take advantage of programs that use color artifacting. if that isn't a concern, i would focus on running the monitor in EGA mode, which is 16 color 320x200. in my opinion, this is the optimal mode of the 5153 and looks pretty bad-ass.
here's an article with a wiring diagram for the input cable:
http://worldphaco.com/uploads/INCREASIN ... O_AUTO.pdf
if you also want to play older stuff that uses artifact colors in NTSC mode, you may want to use something else like a commodore monitor; or at least check the wiring diagram more thoroughly to see if the db9 connector can accept a composite input. (maybe i missed it)
i'm using a SONY PVM which does both