Hi Tom,
rest assured, although I may opt to improve the performance, I will chose options that do not detract from the looks externally and are reversible.
I will be retaining the pure looks of the original car, which is why I searched for an S1 (I won't add extended wheel arches / cooling vents / or paint it in a later model colour etc)
As an example, I've managed to source a pair of very rare original removable windows as I intend to keep it as it left the factory
However, removing the chassis will be the first task...
regards,
Mark