Thanks guys! After work yesterday, I used Terry's suggestion and filled in the canopy gap with some White Glue. It's a subtle difference but there is no longer a see through crack between the two canopy pieces.
With some time on my hands as the wing root putty dries, I went about assembling the Master brass FuG220 antenna arrays. The stalks and cross pieces are all individual pieces and each unit needs to be assembled. Soldering is recommended but I'm in no way prepared to go that route so I had to do this with CA glue. I was hoping that CA glue at the actual joint plus the two tiny braces would be sufficient to hold these things together.
I figured out that the easiest way to put these things together to ensure alignment was to lay the two vertical cross pieces on the table, apply a dab of glue on the middle of each cross piece and then place the horizontal stalk on top. I drew lines on my table and used a piece of Tamiya tape to hold the cross pieces in place. After the CA glue had set, I could gently remove the array unit from the tape and then drop in the braces. It was almost impossible to get the little braces in perfectly straight but I didn't really care as long as they were in contact with both the horizontal stalk and vertical cross piece. For additional strength, I applied another dab of CA glue at each joint.
My mini production line made pretty quick work of the antenna assembly and I'm glad that this worked out well. Obviously the brass units are finer and more to scale than the kit parts but the kit parts are fairly fine themselves. So much so that they are prone to breakage and one would be advised to use great care in cutting these off the sprues and cleaning them up. My kit came with six antenna arrays and only four of them were extracted from the sprues intact. More breakage may have occurred if I had attempted to trim the sprue gates off each one.
The assembled antenna arrays were given a spray of Mr Surfacer 1000 as a primer coat and then set aside for future painting. The Master set includes five antenna arrays, which is exactly the amount the Ju88 needs (four in the front and one trailing from the tail).
The brass tube-enhanced cannons were painted using Alclad Steel over a gloss black base. Alclad Airframe Aluminum was misted over the barrels to lighten them up a bit as the Steel color was a bit too dark for my tastes. I then sprayed the tips of the barrels with a highly thinned black.
I'm very close to the painting stage but I'm not quite there yet. Still need to do some minor filling at the wing roots. I'll probably be able to start painting in a couple of days.