Ric
I have used cans of White Knight Crystal Clear Acrylic Satin from Bunnings over waterslide decals & the new cab paint (acrylic) , it does not affect the acrylic paint or the decal I have used, however have not sprayed it on original paint, probably would make sure all waxes or silicanes are not present -wipe down with Prepsol. Maybe test it on the artwork behind the legs if the artwork is present.
Millsy