I have fitted an Overlander Thumper V2 (T35/36/8 480 watt kv1000), and a 3-cell LiPo. Complete overkill in terms of climb performance I expect, but it filled out the nose of the model perfectly, and put all the weight up front. Plenty of room for an oblique-mounted camera or two, amidships.

Steering this old thing with its three channels and massive amounts of dihedral isn't going to be exactly exciting, so we have to do what we can to jazz it up.