Nice update HH, and like you say, once it’s all together you’ll hardly see any of the inside.
I knocked up one of those antennas… Took 5 minutes and although rough, you get the idea… I know you’d said you’d do the same sort of thing, but it was super easy…
Used a superglue pot for the oval and that’s the unbent wire on front.
And just used some thin plastic strip cut even thinner to keep it rigid.