I've also did a trial run for the hinges I need for part of the flaps. I'm using my other V-22 to work out how to do it but I just need to refine it a bit.
In the top pic you can see I've cut the flap out of the top half of the wing. You'll notice there's a sort of a strip on the leading edge of it. This is actually a separate part to the flap system and I imagine it's something to do with controlling the Coanda effect. It's not specific to the V-22 though, while at the Cold Lake Airshow last weekend, I noticed that the F-18's have something similar --- I had a good look at it
I'm not going to use the 'strip' which is on the kit part, instead I'm going to use a length of styrene angle. It's all part of my idea on how to get the strip to turn down when I move the flap down. Second pic shows the leg of the angle is about the same width as the strip (but I might change the angle to something with a longer leg length and file it down)
Third and Forth pics just show how I'm making the hinge up. I think I can get away with just two hinges per flap, but it may have to have three.