Finally got the shop cleared enough to get back on the left flap. Got the trailing edge double flushes done this evening. Came out really straight. Looks good. 9/25: pressed the bushings into the brackets. Got the initial set with a vice clamp and a block of wood, then fine tuned it with a socket and clamp. Later realized this was probably a mistake as the bottom skins will be very tight fitting over them. Hopefully not too much trouble. My fault for going out of order.