Thank you everyone.
Rick, yes, without 'outer' struts, it was very challenging; for me anyway. I had more walk away moments than I care to admit.
Stephen, with the tunnel vision of an optivisor, I usually knock out one strut for every two I get in place with the tweezers.
WD & Paul, from the Junkers J.I Windsock Datafile, I went with 27D5 for the green, 4B5 for CDL, and 24B4 for blue. My next one will incorporate 15D4 for mauve/lilac.
Vallejo Model Color mixes
Green 27D5 - 4 parts 70.974 to 1 part 70.891
Mauve 15D4 - 4 parts 70.812 to 1 part 70.907 to 1 part 70.944
Blue 24B4 - 2 parts 70.808 to 6 parts 70.907 to 1 part 70.885
CDL 4B5 - 70.916
Stuart