get assorted wet n dry paper from halfords sand the laquer off then do it again with finer paper.
spary it with chosen colour allow to dry and rub all the runs and imperfections out with wet n dry paper but dip the paper in hot soapy water clean off n spray again and repeat sanding and spray again paint should be nice n smooth now so leave it to dry for 24h n get a couple of coats of laquer on it. job done
if you strip it back u will need primer n if you dont key the paint in itll flake off