You could go with a 38mm heavy wall body tube (17in long), 29mm heavy wall motor tube (5 in long), 8in long LOC 38mm plastic nose cone, LOC 38mm to 29mm centering rings, 1/8" thick plywood fins cut for thru the wall connection, 18" thin mil nylon parachute and 3/8" x 36" elastic shock cord. You...