Some more progress over the new years break:
Installed a single din head unit to free up some space for gauges. Plus I can actually listen to music now.
I bought and restored some used wheels from gumtree. Stripped, repaired damage, primer filler, wet sand, metallic graphite. This was my first time using metallic paint and it was a bit tricky. It's a very powdery / soft finish. I might need to seal with some clear coat.