I apparently made the mistake of buying the notoriously difficult to modify RadRunner 3+ and I'd like to change the controller+display to accomodate a 52v battery. I see that ElectroBikeWorld has this: https://electrobikeworld.com/products/rad-power-6-upgrade-kit but of course that is for the RadPower 6+. Anybody know of a good option for controller/display updgrade to accomodate a 52v battery for the RadRunner 3+?