see how you want to do it 1 la....

cheap got cheap do

exp got exp do

you want to paint just the outer? or the whole car?

nah DIY

buy 1 box

can change mat7 colour you like 

no budget 

dunno bout penang, however in KL, i repaint same color tranq black 2 panels (rear door and rear fender/pillar) also needed 700+

full car full color conversion i can easily estimate 3-5k depending on workmanship/quality of base paint and clear coat.
do bear in mind tranq black is LOADED with COLORFUL metallic flakes which i personally find it annoying and require a lot of masking detailing products (glaze, color pigmented wax) to deal with it which williamhoo commented it looking good so i guess different preference/taste.

admittedly, under certain lighting conditions/especially night time it does have that nice sparkles.