Nice work PFB. If I might make one suggestion. You had mentioned that you use CA and kicker so that you can break it apart if it's not right.
Well I can see the reasoning in that. I would strongly suggest that you use either
Plastruct's Bondene or their
Plastic Weld
when using styrene. I use both. I use the Bondene when I might need a little time to get it positioned correctly and the Plastic Weld when i want it quickly.
The problem with the CA is that it can break, thus why you say you use it. The Bondene and Plastic Weld do just that they weld the pieces together and if it is going to break it will most likely not do it where you bonded it.
As for tacking the pieces together for fitment, just use blue tape. The reason for this is because the plastic Weld and Bondene will not work if there is CA on the joints.
Also for extra rigidity on 90° butt joints where possible (where not seen) I use a piece of 1/4 x 1/4 x .020 angle.
Just my two cents, I am in no way criticizing your work it truly looks great.