Hi Bro, what kind of guitar are you looking at? One with set neck like lespaul or PRS styled or one with 'plug n play' strat, superstrat styled? strat/superstrat styled is very easy to custom. $300 to start a simple strat. $600 can easily build a very decent strat that plays like a thousand dollars. Double that and you can be looking at exotic wood bodies w birdseye or flamed maple necks, active pickups. etc.
Of course, if you're looking at neck thrus or set necks, that maybe a lot more difficult and costly.
btw, which part of Khatib are you located?