help
26-10 is your prop on all 3 desired engines.
Stay away from the 3w. The older ones with the resin cast reid valves are ok...the new plastic reid vlv's are weak and fail often
Go with ZDZ...trust me.
The other brand I have no exp.
good luck...
Both the ZDZ and the 3w hand start nicely. Both will kick back and hurt your hand. use glove. Start at idle.