I have a Striker 60lb thrust on my 10ft ally dinghy.It pushes me along at 3kn which is great to get me to shore or puttering around.I have just upgraded my main solar to 2x 325w from 3x130w and so have mounted one of the 130s to a storage box I have on the aft deck and run a wire to the dinghy battery to charge it. Works great and with a pair of Anderson plugs easy to switch from charge to motor. Not a particularly long run as I tie the dinghy to the side of the boat to get our dog on and off.
Works for me. Oh and I sold the other two as well so offset the cost
John