What about a Motif Rack used (not the ES rack) then two controllers. One weighted, like a Fatar SL880 and one lightweight, a used XP-60. All that should keep you around 1500. Just a thought. I know the XP engine is a little old but it's good and the XP-60 is expandable with a good sequencer. The 88 weight keys will give you a nice piano feel, the light weight keys might be better for the organs, brass, strings stuff.

With the two synths (XP-60 and Mo Rack) you'd be able to layer some nice stuff.

Anyway. best wishes on your search.
Bob
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