Whilst I am biased, the Liquid Mercury used on the original Aeromax is one of my favourite grey tones. The paint isn't inexpensive but as there isn't a huge area to cover, it may be worth considering if you like the colour.
Photos do not do it justice but here are a few to consider: -
The interior also does not photograph well because in reality it does not look distressed but rather has a nice patina and almost looks like suede. This is not a standard leather but imho worked perfectly with Liquid Mercury