Controversial opinion, but I don’t put Novus on a play field - only on plastics and ramps. It’s liquid sandpaper and with repeated use over time, it will remove the protective varnish, leading to wear spots.
VM&P Naphtha is alcohol-based and evaporates quickly, but the fumes tend to linger. Use a respirator in a well-ventilated area away from open flames. Or you can use a de-greasing water-based cleaner and wipe immediately.
I also recommend finishing with Carnuba paste wax before re-assembling the play field. Apply a coat, let it set for an hour, wipe away with a clean rag and buff with a microfiber cloth.