Best paint for respray?

[adrianbutter]

Hi!  The old bus (1985) has been re-worked in the metal shop and is now ready for a full re-spray.  When seeking quotes I am getting different answers as to what is best.
Obviously much of the van is going back to metal and starting from a primer.

Do I push towards 2K paints or base and clear coat? Are there advantages?  Is there a way I can work out what I had before (12 years ago), or indeed what was used in 1985?

Thanks,
Ade

[adrianbutter]

I've already had the lower front re-sprayed - 'base and clear' - but it seems to be chipping easily.. A small stone today (nothing of any note) and a 4mm chuck has come off?  Normal - or poor adhesion to primer?
 

[ZsZ]

IMO 2K industrial coatings are fine for non-metallic colours. They mix the laquer in the paint so it can be shiny. You can even choose stronger hardeners in specific brands.
I think those are closer to the original paints VW used in the 80's than todays water based automotive paints.