Alclad is basically a lacquer, but a weird one. It does not eat away enamels nor acrylics. I am not sure what the solvent is, but it seems to be a variant of lacquer thinner. I would think one would have to be pretty good on paint chemistries to combine it right. Also, the pigment in Alclad is ground superfine. I would think you'd have to use another pigment with similar sized particles.
A thin overcoat over a colored undercoat is easy. Done it a number of times.