Most safes with combo locks are in the $500+ price range, Cabela's will have those on-sale.
You can also replace the standard cam lock on a CanTire 'cabinet' for around $30, with a combination cam
Pulled the dinette out , it was uncomfortable and takes up a ton of room.
The best change I did was replacing the storage locks with these combination locks.
No keys needed, I hated being outside and go inside to grab a key. The nice thing about it is we can keep an extra set of keys in storage incase we lose our keys or lock them inside.