Ah, SCART! If only it were more common in the USA. Would make finding an Amiga display much easier.
You'll want the RGB (more expensive, sorry) variant for maximum quality. The AV version will work, but you'll get a fuzzy, black and white picture.
In fact, if you're using composite video out from the Amiga, then the SCART cable gives you no advantage in this case. Just run a single RCA cable from the mono video port on the 2000 to the video connector on the monitor - the leftmost one. Quality will be identical to the AV SCART cable.