It isn't that hard Adam. Even in 1/72 scale I do it without drilling holes in the surfaces. I just measure the distances with my compass and cut sprue to length or a little longer and attach both ends with CA glue then if the piece of sprue is a bit too long for the distance I use the heated match method to tighten it just enough so that it looks right but not enough to put too much tension on the wire and warp the wing. all the biplanes I've done so far have had ailerons. I have done one old Revell Fokker E1 (I think) back in 1970 using string for the wires. Back then I didn't know any other method.
I did have a major fail with this method years ago when finishing the Heller 1/72 scale Bucker Jungmeister. I got to the very last wire to tighten and it just wouldn't tighten for some reason so I got frustrated and pl;aced a lighted match near the wire. Melted the wire and the cabane strut as well. Then I got more frustrated and threw the whole thing in the bin. If I had thoguht about it I could have made up a new strut from sprue or plastic card but I didn't think of that at the time. The model was already painted so it just went west.
That Polikarpov I-5 I posted had a crash landing when it was in the construction phase and the undercarriage and interplane struts got broken. I thought I'd have a shot at making my own. can anyone tell from the photos that the struts aren't original? BTW, I have anotehr Bucker Jungmeister in the stash to replace the one I turfed and a second one for a future conversion.
Regards,
RHB.