How about a nice used G70?

VERY easy navigation, VERY good basic soundset (awesome Hammond's, EP's, synths, brass, etc., everything you mentioned, in fact), a pretty self explanatory front panel. The piano is SO good, you might use it instead of the C7

Maybe not as 'cool' as the Motif arps (but how do you lock the live drummer to those?), but it can still sound pretty contemporary (the Cover Tools are a revelation), and do retro at the same time...

And then it will still do a pretty good solo worship lead for when the band can't make it...