Decided to try spray painting on the rear bulheads after receiving advice from a local auto repair outfit that supplies Skyworx Aviation. Had a couple of runs which I let dry and then sanded flat (feathered) and re-painted which turn out well.
Generally the painting went well with the real lesson to be learnt of how to reduce/avoid the slightly rough feeling/texture of the surface otherwise. Definitely an acceptable standard and retrospectively I would have painted the entire interior like this.
