The pilot reported that he commenced the take-off roll on the easterly runway with a quartering crosswind of 5 to 10 kts from the north-east. During the early part of the roll, the aircraft veered to the right before the tail wheel was off the ground. The pilot managed to correct the swing and continued with the takeoff. The aircraft swung further right again when the tail wheel was raised. The pilot apparently overcorrected and headed towards the left side of the strip. During this change in direction the left wing lifted and the right wing struck the ground. The right main gear collapsed during the subsequent slide. Both occupants evacuated the aircraft from the left side. The pilot later said that he thought the crosswind swung to a quartering tailwind during the take-off roll.