Hey Ernest, a place to start on what you might need to put that engine into the Glencoe kit would be to compare the Eduard and Glencoe fuselages to each other. Size, shape, and holes etc. that should give you a pretty good idea of just how much you need to change the Glencoe kit.
Been working on the Roden Seimens Shuckert D.III the last week or so. Have the louvered panel under the fuselage and just behind the engine all opened up. To do it right, a lot of it ended up VERY thin, but the innie/outie louvers look fabulous. I have seen photos of this part with the openings done incorrectly and they don't look right. It looks quite different when done correctly. Have the handholds on the fuselage rear sides cut and moved as well. Basically whoever cut the mold got the positions crossed between the sides. They are supposed to be slightly below center line and angled slightly down. Instead they are slightly above center line and angled up. The fix is to make identical cuts around then and swap them to the other side. Worked quite well.
Might try to put together a post tomorrow and show you all what I have done.