To start, I would absolutely replace the entire unit as this much damage there is no salvaging any part of it.
As for what size the tools are that you need, we don't have that info either. I imagine the oil lines are 13 mm but it would just require some trial and error. I would just buy a set of crows feet if you don't have them and it will contain the proper size.
I attached the process from Alldata on the cooler to see if that provides different information.
Let us know what questions you have.
Images (Click to make bigger)
Sunday, December 6th, 2020 AT 11:51 AM