The Acid treatment AKA Paint remover, well, i dun really recommend u do this to your car, it strips the paint till the bare metal. Unless your spray paint shop include the anti rust, and tons of coating, usually not recommend leh.
This is due to your car will be like from the factory, i remember this was done on an EK9 from Solid Red, to pearl white, RM 5K leh. But of course, everything stripped and sprayed perfectly. Can say, if the owner never mention his car been spray painted b4, nobody will even notice. Hehehe But 5K leh.