Spray Paint on the plywood, there will be a lot of treatment need to do, for example to plaster the plywood so that make the surface to be flat if not you will see a lot of wood grain on the surface which not able to let the paint go in nicely, 2nd, the edge of the board are very rough, so they must apply wood vinyl to seal the rough surface, and yet, all this treatment will create a cost, will the price comparable to solid wood? I not sure, but by using MDF, MDF itself will be smooth surface and easy to be spray paint finish. so usually spray paint thing will be in MDF, solid wood also the same, to be nice, they must plaster all the wood grain and sand it nicely, the only diff is they dont have to seal the edge.

Melamine board is call MFC (melamine Face Chipboard), a wood chip compress board with melamine finishing

hey bro , do you do retail shop / coffee shop ? or just only do house renovation ?

Your information is insufficient. Quartz countertops top can be from RM150 to RM1000+ per ft run for standard 2ft width counter. Cabinet make of what? Aluminum? Solid wood? Melamine?

Hood and job depends on the model. Sink depends on the size and materials. Etc etc

Materials influence the cost tremendously. So is the design.