Yeah, got a cheap HVLP gun from Harbor Freight, used Kilz latex reduced with floetrol. Then sprayed water based varnish as a top coat. I read mixed reviews on adding a top coat over latex , but I sprayed a couple test panels and it looked fine.
I built mine from scratch earlier this year. I pasted a few pictures below. I strongly recommend picking up a Kreg Jig, made the process much easier. Happy to answer any questions you may have!