Most things in Pakistan has some small tiny loop-holes in them.
If you know them shortcuts, life becomes much easier.
Dad wanted me to start importing big 50kv+ generators, but for that I would have to travel to Karachi and talk to a few of his friends who are in Customs etc. since it's difficult over the phone.
On FBR's website, check the tariff. Very cheap if you know what you're doing. Say Importing a BMW body without the engine and the engine in another container etc. you can save quite a few bucks!
I'm still thinking of finding a contact in Customs in Faisalabad- Mutton karahi and he will start speaking:)