On the weekend I completed the final steps of repairing the damage from the wombat, and I drove the car to work yesterday. I'm very happy and relieved to say that everything is now OK :-)
The AC needs to be regassed but that can wait until after winter. When the time comes, hopefully there won't be any leaks where the AC hard lines attach to the replacement condenser.
I want to get the gearbox rebuilt ASAP and swap in the electronic speedo sensor at the same time.
I'm not sure whether I'll fix the intercooler piping before or after that.
I'm also long overdue to get a wheel alignment. My front tyres are worn much more on the inside than the outside, even though I only have about -1.5 degrees of camber. I can only assume that it's due to the excessive toe-out, which I know is there because it takes a lot of concentration and effort to keep the car in a straight line on rough roads.