It will take 2 days. As it is hike of 2500 meters. And on average one can hike 1000 meters in a day.
Plan like that, you must reach at Raikot Bridge in the morning. (Keep a bottle of water as at the Raikkot they used to drink Indus water) Then wait there for some group and try to patch to some group. You must be lucky.
Luckily I found a group of two people and my cost was 1700/- for a two way journey. (divided by 3)
To cut costs keep with you some food as food is very costly there. Camp in your own tent.