Did you consider the Ultimate Support AX 48Pro ? I have used the old origenal for years with two sets of 18" bars for two heavy KB's including the G70. It is a breeze to set up and lighter than the 90.
It is the only stand that can be adjusted to view both screens I know of.
Bernie
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pa4X 76 ,SX900, Audya 76,Yamaha S970 , vArranger, Hammond SK1, Ketron SD40, Centerpoint Space Station, Bose compact