This is a real challenge and no mistake. Tackling a large scratch build is something that I want to do but have not screwed up the courage to do so yet! Your wings look really good - I too use microstrip (Evergreen) for the ribs and it usually works well as yours have done - tedious but effective. With reference to the plastic of the wings, I have never used your bending method - I put my card into a pipe which is sealed at one end and then pour in boiling water for about 10 seconds. I have seen a coffee maker used for this too, (one of those glass units with a plunger - whatever their proper name is…) but that will only curve short pieces and the wing on the DH 10 would be too long. Using hot water is permanent - I cannot vouch for your method as I have never tried it. The fuselage should be straightforward as it is slab sided so in all this is going to be one interesting build.
As Gregory has written - welcome to the alchemy club. Having seen your Kitten, RE 8 and FE 2 I am sure that you will be posting a lot more in future.
Stephen.