My friend Jimmy's "E-10 into A-55N" project looked very good indeed (if you like that sort of look)...he removed the bass pedals, and managed to use the organ's volume pedal opening to fit in a sustain pedal for the E-10.
The advantage of using the organ's empty shell (minus the keyboards) is that it is already at the proper height...it's just a matter of doing a suitable enclosure around the Arranger. The wood was really nice...sort of an American Walnut veneer.
It took up a little bit more space than when the E-10 was on a double braced X-stand. The matching wooden bench needed to have the legs shortened a tiny bit.
I think all he paid for the organ was the cost of moving it to his house...the A-55N was the entry level Electone and had only the basic features.
So, if one could find one of these old organs, they would make a great starting point.
Ian
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.