Not sure on the panel beater's price, but I reckon white or silver can look great on a shell without windows, and the repair flaws won't show up so bad on either of these colours. Either of these colours with black trim, N66 rims, HX/HZ Sandman blackouts and no stripes looks great. I never advocate lowering them much though as they look better closer to stock, maybe lowered an inch. Everyone has different taste so do what pleases you! Just don't paint it green with purple stripes and orange trim!