Is it necessary to glaze over the inside the wooden frame before painting it? It seems like that would be hard to do. It would be tough to sand and get clean edges on the inside corner.
Do you leave the back on the Lilli or remove it for ventilation?
When you bond the Lilli into the frame, I assume you do it from the back. If the back cover is on the Lilli when you bond it, then how do you paint the Lilli after its in place given you can't disassemble the Lilli?