BTW, Ian... ever played piano? THREE pedals.
You probably handled those OK with just two feet, right? No reason to cripple your musical intent for the sake of not putting another pedal down there.
Personally, having come from an organ background, I've had 25 pedals at my feet! 26 if you count the swell pedal! I honestly don't think an FC-7, a couple of sustain pedals and a volume pedal is too difficult to run compared to walking a bassline while you play..!
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An arranger is just a tool. What matters is what you build with it..!