You'll need to practice on an old model but the results will be well worth it
Of course you could just spray it silver but it's really worth going for the proper job
There is a lot of good equipment and materials for modellers nowadays and I would think where you live there should be an extensive range of goodies
Whichever method you use the trick is to make the tint differences subtle.hardly noticable in isolation on the main area and pick out the odd panel made of different grade alu in real life.
Look at pics..they will give you an idea and the model can have real character and something like the Strat is crying out for such attention.
There are various modelling sites that are full of tips and examples and they can be a very enjoyable read as well as a great source of knowledge.
Garry