Quick update...
I have removed both headlights, headlight motors and side/indicator lights and all the wiring from them. This includes cleaning the components and the bodywork wherever possible with simple green, brushes and rags. There is so much surface dirt from the car being in storage for so long that everything looks so much brighter with just a little cleaning. It was interesting cleaning decades-old dead bugs from the headlights and front end!
Here are a few pics:
Driver side front quarter panel now without headlights, front indicator and side indicator lights. You can see a bit just how filthy the inner wheel well is in this pic.
Driver side headlight bucket from the side
The headlight bucket has a drain tube welded in that simply drains to the ground. This can get clogged up with debris and rust out but these were in good shape.
Some lighting components - headlight motor, rubber guards from the wheel well, and indicator lights.
Bonus: When I bought the car I returned the wheels so I could afford to buy the car in the first place. I was able to purchase the wheels back a few months later so now I've got the original wheels for the car! Thanks Cory! They look a bit scruffy as they've been sitting outside but I will clean them fully and get new tires (sidewall rot on these) before I'm back on the road.
Also, I officially titled the car last week in my name and got a "black tag" instead of insuring the car, which means it's not legal to drive on the road. But no worries, as I'm not going to be driving this car anytime soon!