Great work, Steve.
If I may, let me tell you, that mounting the top wing on Albatros D.V is not bad at all. Attach the V-struts to the upper wing, let them dry. They should be perpendicular to the wing. When glue is setting, check the spacing between the tips of the V's. Then glue the wing with the struts to the lower wing, a support will be necessary to hold it against the inevitable tilting forward. When this is set, you should be able to add the cabanes to stiffen the structure. Usually only at this stage it turns out if they have right length and geometry. Such a way works for me in 1/72 scale, where the top wing is not heavy and should hold well, some time at least, before the cabanes are added.