While it doesn't have "parts salvaged from fights", would recommend checking out Avorion.
- Fun ship creator ( can make as simple or as complex ship design as you want, for some extreme examples check out Steam Workshop )
- Manage fleet of custom made ships
- Ship design affects handling, combat performance
- Send ships to missions
- Fight along side your ships, control other ships with RTS-like control options
- Has optional multiplayer
It's awesome shortcut and I use it all the time. But there is nuance
For it to work there is specific order of actions
If you hold ctrl at the start it does something different ( don't have Godot at hand to confirm what it was )