This is my Cantina build, I tried to place the ladder to the basement as discreetly as possible - you can see it at the back end of the bar. I also added a game table for kids to enjoy in the top left section, this is all I added on the main floor.
https://dl.dropbox.com/s/3ly5964e14vrhql/09-09-20_10-00-55%C2%A0AM.png?dl=0
Down in the basement with the toilets/showers on the left hand side:
https://dl.dropbox.com/s/ge6rn3cdroi2orx/09-09-20_10-00-36%C2%A0AM.png?dl=0
It's not massive, I tried to do it in-keeping with the upstairs so it would blend in with the theme.
It's a bit of a pain in the neck to download though, they didn't make things simple! Although I didn't use MOO when building it, if you don't use MOO before placing it then it deletes some objects - including all of the toilet doors! Even using MOO before placing, it still removes the main Cantina door so you have to put that back too!
Edit: I changed it up a bit afterwards, as I decided there was no point wasting space for a decorative juicer (no harvestables, as far as I know)... so, chess!
https://dl.dropbox.com/s/2wzmij9bi9wywnw/09-09-20_10-54-08%C2%A0AM.png?dl=0
And my sim trying out the comfort of the bed:
https://dl.dropbox.com/s/fb6f2e4bvvt68aa/09-09-20_10-55-25%C2%A0AM.png?dl=0
I put a camera on a shelf down there, I keep forgetting to get him to try and use it, so I don't know yet whether it is useful.