I put new storage bin in front. Got from Amazon. What is needed are cup holders for the back seat. Haven’t seen any yet and It’s sorely needed since I don’t have the cup holders in the middle backseat.
I like the idea for a lock box option. Particularly, if the lock is finger print or some type for quick easy access. Needs to be hard install (internal bolting).
A proper locking and secured device for when the tops are off. With an inside ID large enough for storage for the ones the have "Permit to carry" or a large wallet and keys.
If I were to install a hard sided storage option, I would install the molle version. Enclosed door storage on a vehicle that is used in the field get absolutely gross after a few years. Those door pockets are both narrow and deep making cleaning a real chore.
I picked up these from amazon, and they are great. You can still use the nets, you can put two cans or water bottles there as well as other things, and its a quick easy install. Was 29 bucks on Amazon.