First of all, american tailors and others like karegar etc.. are not appropriate bespoke tailors. They are just making peoples fool.
They just sew the fabric to get suit shape...but suiting is something else which isn't even possible to stitch in 2500-3500 rs including fabric.
Wazir is good but now not much good anymore. Still he is charging 5000 Rs. for a suit to stitch plus fabric.
The good ones are
Royal Suiting in blue area.. They are really good.
A guy in beverly center name i think ilyas.. try him
Simla cloth in saddar, melody, super market.
The desirable suit at the end will cost u minimum from 11,000 Rs. including stitching.
Choose high grade fabric. Tux means black and white. If u go for three piece, use the same fabric. Do not add layers of colors.
For really good shoes visit Allah Buksh right at front of munchies in super market. I really like their bespoke shoes. Their shoes starts from 7,000 Rs. But some are also available in discount.