List of what I have done to mine
Twin SU's to get rid of the Stromberg
Full sport exhaust system.
Halogen headlamps.
LED bulbs in the rear clusters.
PU bushes all round.
A full leather interior from an S40
A mota-lita woodrim wheel
I like my mini-lites as they are period to the car. As were Cosmics and Woolfrace, but please no American equivalents!
Mine came with a 70's style pop up glass sunroof that has started leaking this year so it will be replaced with the Webasto that I have in my loft.
Finally I am working with a Dutch Amazon owning friend on the installation of electronic power steering.
I might have my perfect car in about five years!