Are you asking about how much solar
you need? Or if the Renogy panels can be walked on? Or if you can mix the Renogy with the Kyocera
how much electricity you use from the batteries on a daily average and match the real solar
output to that plus 30%. That should keep you from needing to charge with the engines in all but extended cloudy days.
If the Kyocera are 17V nominal panels, they can be mixed with the Renogy in parallel. If you are using an MPPT
controller, any panels can be mixed in series up to the limit of the controller.
I don't know how much walking force the Renogy can take, but I'm sure someone here does.