Vortex Sound Research

I gig with a G6 and love playing it but hate carrying it around--it is like 35#. I hate the feel of the Roland VR-06. Same with the Yamaha MX61. They feel like the key resistance is supplied by a rubber band. the keys have no snap. Is there a G6 keybed in a lighter synth out there? Used is fine. i need only 61 keys and don't use the sampler or sequencer on the G6.