Im looking to scale up a slow stick to a 4ft (48") X 9" cord wingspan made with correx corregated plastic. The type SPAD planes are made of. Im wanting to get at a minimum 30 minutes flight. Im still a learner so most flight will be at half throttle or less but I do want a lot of power so if I get in trouble I can pull the nose up and power my way up high and safe. Im expecting fully loaded the plane may be 1 -2 lb. Can anyone give me a guide to what power brushless motor, speed controller size and battery would be the best fit ? I know slow sticks are usually very low on weight and battery power but I have no problem with hanging a plastic box under the plane for the extra batter weight. Thanks for looking.