I built same ARF and posted pictures here last September.
One important thing should be done: secure the belcrank mount with some extra glue and sticks. And when wing is in place in the fuselage drill holes trough the fuselage bottom, trough the wing sheeting into the belcrank bottom plywood mounting plate. Glue the bamboo stick trough the hole, but not to far past the plate, so belcrank will be free. If proper pull test is applied to the unmodified belcrank mount it will break loose. Not enough glue in the AFF at the factory.
Correct way of making control- is to use an offset flap horn. In this way the linkage to the elevator will not interfere with the flap.
I used 3/32 music wire for joining the flaps and same 3/32 wire to join the elevator half’s. The kit joining U shaped wire is too weak. I think it’s 2 mm in diameter, I trow it away.
I used all components from the kit. Marked the place and bent the flap wire, marked and bent the flap to elevator push rod wire. No adjustments. Elevator pushrod wire was bent to clear the flap. Model was built in four days, flew fine.
Jerry