dropping the flaps on resin kits

Hey Guys,

I just got AV models’ resin kit of the Armstrong-Witworth 52 “flying wing”, which has large flaps on the aft section of the fuselage–these are seen in reference photos as droped when the aircraft was on the ground. Since the body of the fuselage is one big moulded resin piece, I was wondering what I should know if I wanted to drop this flap structure in my kit? It would be my first resin aircraft experience, so if any of you have advice beyond the basics I’ve seen on the web, that would be great too.