Thanks everyone!
I think I'm going to use some borderless crosses and paint the white edge, just as would have been done originally. I'll see how that looks...the undersides are borderless anyway so it would make sense..
I have now attached the lower wings to both of these, and added the Spandau to the D.II - I'll wait until the struts and exhaust are fitted to the D.I before I put the MG on.
I also tried to make a start on the cabane struts, but after doing one, then dropping it and losing it to the carpet monster, I decided that I should leave it alone and come back later....

I have also made up and attached the radiators to the D.I..

Back to work tomorrow so probably no updates for a few days.
Ian