Fill4Me will automatically insert fuel and/or ammunition from your main inventory into entities when you place them. It is mod-agnostic and will learn about items & entities in other mods. It is an alternative to the Autofill mod.
Utilities
Mod category: Utilities
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.
The redmew guys have some smarts that cause turrets to be auto-filled, but they also impose a delay on the placed turret going active. Maybe this logic could be added to your mod as an option.