Camps and Cannon towers

I've been playing this game non-stop and lovingit. But one idea I had was what if there were camps you could purchase? A kind of thing you could place on an island that was somewhere you could store items (cannonballs, bananas, planks) and turn in chests? It would not be permanent (would vanish when you and your crew left the session), destructible with decent health and you would only be allowed to place one at a time so you couldn't just litter islands with them (also could not be placed on Outposts). You could also purchase a cannontower (like at pirate forts) and place it on islands (same rules would apply as the camp, but could not store items and turn in chests in the cannon tower). I came to this idea after finding myself on Thieves Haven island and wishing it could be my base of operations but knowing it couldn't. It would feel so cool having your own island for you and your crew to return too, even if only temporary.