99 lxi convertible - radiator, etc replacement

My wife rear ended a vehicle with a towing cap. The bumber would have been easy, but the cap went through and bent the radiator, AC condenser and oil cooler(?). I am thinking about replacing these on my own and looking for advice. Any suggestions, input, etc. on where to get the best parts for this and how to do it.

Seems like there are lots of different radiators and condensers and I don't want to get the wrong one. Also, I cannot find what I believe is an oil cooler.

One additional odd thing. The battery seems to lose its charge within 24 hours since this accident.

Thanks for the help folks.