Wow Grog I've never seen that
electric wire before, it's cool and pretty reasonably priced. Got that one book marked for future use.
As for the silhouette if you can just leave a little over a foot between the curtain and the houses you should be able to do it with floor mounted: strip lights, Flood PARs, Fresnels, or as has already been suggested Source Fours with 70/90 degree lenses. I don't see any need to get too fancy. Just mount them to a piece of plywood and shoot up.
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