Hi Kriss!!
GREAT, GREAT choice!!!
It's the aircraft I love most! I also had the opportunity to enter inside the example kept in Trento at the Caproni Museum (the only other survivor is in Vigna di Valle) and I won't deny that being inside I got shivers thinking about those young boys who, inside a structure of duralumin tubes covered with canvas and metal plates only in the front part of the aircraft, in the torpedo bomber version they flew at a height of 30m above the sea facing the cannon ships fire that started from 0 and above and challenged the allied convoys in the Mediterranean Sea. Talking about torpedoes, you will certainly know that, apart from a few test flights, only the one on the left under the pilot was mounted.
Regarding the interior color this was the light Blue Gray used for the lower surfaces. In some places, on the metal parts, the Anti-Corrosion Green showed through. I'll insert a couple of photos I took inside the SM.79.

- 20231130_112156.jpg (92.39 KiB) Viewed 15332 times

- 20231130_112156.jpg (92.39 KiB) Viewed 15332 times

- 20231130_112210.jpg (136.68 KiB) Viewed 15332 times

- 20231130_112210.jpg (136.68 KiB) Viewed 15332 times
Maybe you still have time to correct what you've done so far.
I also include an image of the interior of the 1/72 scale model that I built more than 25 years ago.

- 11.jpg (251.46 KiB) Viewed 15332 times

- 11.jpg (251.46 KiB) Viewed 15332 times
If you like, you can take a look at my site
https://brunoperfetto.weebly.com/sm79-sparviero.html (I apologize for the photos low quality).
Ciao!