Acrylic clear over Lacquer ?

It is best to use the same product on the model.Clear costs are not hard to get.If you use the mix of both types .Use the acrylic first then the enamel.Remember that enamel never dries.Only to the touch.Acrlic dries hard and fast.

I just did this with flat acrylic MM testors over MM lacquer through an airbrush and it looks fine (including over the decals).

You can spray acrylic over lacquer and lacquer over acrylic. The acrylic needs to be cured say at least 3-4 days. I shoot Testors clear flat lacquer over cured Future all the time.

Sounds like a plan, thank you

My guess is it will work, but why risk it, when a test is easy.  Spray some of the glosscoat on a piece of scrap plastic, then give it a shot of the dull clearcoat, and see what happens.