I'm just getting a crash when both cargo-ship and this mod is installed:

  14.594 Error ModManager.cpp:1751: Error in assignID: item with name 'oil_rig_migration' does not exist.

Source: QualityMiners-uncommon-oil_rig_migration (mining-drill).

Likely an error with a mismatch between the item in hand and the placed entity according to the log. But there was a similar error with dredgeworks. Can't look into it right now, but anyone can feel free to fork the mod if they find the time for a compatch.

This crash (still) happens on startup of the game.

I guess the mistake in that other mod is that they create the whole entity from scratch while you should use table.deepcopy() on the entity you have based yours on and then only modify the attributes you want to change and then do a data::extend(my_modified_entity).