Car totaled, what can I do on this list to salvage a bit longer?

I had a wicked run in with a pothole and my car took a beating.

I took it to a mechanic, and they gave me a huge list of things that needed to be done to fix it. However, insurance wants to total it out for less than the cost of the mechanic bill.

I don't want to throw a ton of money at a car that's likely going to need to be replaced shortly anyways. Could anyone tell me what on this list is really important to do in order to have it run a bit longer?

I'm going to buy back the car and fix what I can limp by on, then save the rest of the money for the next car I need to buy.

Insurance payout as salvage: $3,400.
Total cost of repairs: $3,900.

I know I for sure need a new transmission pan and to fix my alignment, but here's the rest:

Wheel bearing and hub assembly
Strut assembly, front right and front left
Sway bar link replacement, front
Automatic transmission mount replacement
Oil pan and gasket replacement

Thank you!