OK, that is exactly what the mod already does (only the animation remains "delete" and does not show selling the ship) Side note: The mod does not provide store-specific credit (which I believe is ok), i.e. when returning a ship, you are getting back a fraction of resources for general purpose. Store credit would mean you get a reduction for your next ship.  The remaining question is if a building needs to be garissoned with at least unit in order to allow deletion (mimicking arson). I still have doubts on that concept: burning down your building does definitely not give back much useable resources. Requiring a person to be in placed inside the building to be destroyed appears counter-intuitive to me (this is already strange with a manned tower or siege engine: the crew survives destruction, other than for a ship where they sink together).

The Romans landed at Carthage.

Please make a PR for the base game. lol You're in luck too! The next Release will fix rain particle orientations. 

Spoiler Alerts! lol

Aristides the Just in my current writing project.    (Ostracized^) (Storming Psyttaleia before Salamis)   (Ready to march the army to Plataea)