if your having the entire bike painted by a pro (or even your mate in a shed with a compressor)
might aswell look into a modern twist of the original colour
red/burgundy - maybe a candy
silver - shimmer silver
black - - spend an entire weekend wetsanding and get it to a perfect reflection (its really not easy)
blue - there are some really nice metallics out there now (some say the blue ones are faster so go even faster with a better blue lol)
paint is expensive no matter what unless your doing a touchup - just make sure you buy a good 2k or you will regret it in the long run
once its painted and 'dry' keep putting it outside in the sun every chance you get it is suprising how soft paint really is for some time
so the UV and heat helps cure the paint
i have my eye on some paint from
https://www.custompaintshop.co.uk but im keeping which one to myself lol