Here Just two suggestions for future flagships:
-a big arocs scale truck motorised with a single motor and a dump battery box. Motor placed in chassis and will move outtriggers,rotate crane and maybe more with gearboxes. The power comes trough the turntable together with a manual activated axis.all this will move a compact 4 functions gearbox with the orange wave selector...i don't mind if it is finally a crane truck, a rotator tow truck, a log truck or whatever. We just need new frame elements to make a solid stiff ladder chassis
Second one a rc backhoe with 4 motors ,4wheel drive and 4 wheel steering
I see 2 solutions here:
Just rc with loader function, for the pneumatic backhoe you have to switch over 1 or 2 motors on the pumps
Second solution is to switch over the4 motors manually and then we have a rc backhoe (outtriggers, rotation, first boom and second boom together with bucket)
In every case we need new yellow rims tot use the reduction hubs