Frank-
you asked what trouble I was having with the wings so here goes.........
As I am building the Mk.47 I need to use the parts needed to make the folded wing. As you will see from the instructions, Airfix intended this version to be built with its wings folded. So in order to build it with the wings down a few tweeks are called for. In order to create a stable wing I opted to use the lower Mk.46 wing and the upper Mk.47 wing, instead of all the Mk.47 wing parts. This is great until one discovers quite a gap between the molded on-flaps and the lower wing halves on the underside of the wing.
With me so far?
All of this causes a ripple effect, the wingtip formation lights will not fit properly and the the trailing edges of the entire wing need thinning........ I have used zap-a-gap to fill the trench on the underside and thinned tippex to cure the trailing edge problems.
So how does this effect you? As you're building a Mk.46, it won't. You lucky
The only problem I think that you will encounter is the formation lights......if there is a step on on side of the wing, cut it away and superglue the light in. Then all you need do is sand it down to get a flush fit.
Phew! I think thats about it...........
I hope in some way this is helpful!