Ahhhh, in the second map there are two "3"s. I belive that the one in the upper right should be a "5".

Royal, I just tried, no go, as far as I can tell. The Token Treasury symbols backgrounds are varicolored, not transparent. If they were you could do it with some size adjustments, and fooling around with backgrounds.

Frosty,

I have a few deck plans on the Citizens of the Imperium site. https://www.travellerrpg.com

Also check out https://travellerrpgblog.blogspot.com/2020/07/starship-geomorphs-20.html for lots of art work. Making symbols takes some work. Check the "Tome" for instructions. Then ask here if you have problems.

As for the guns, if you consider them as decks and treat them graphicly the same way as you did the crew deck. That should work. YMMV

The Cosmographer /Deckplan /Furniture symbol set has a variable symbol labeled "bed" variation #6 & #7 are bunk beds. The Modern/Floorplan/Furniture (private) symbol set also has bunkbeds. There may be more.