Bus service from Islamabad to Gilgit, Hunza Travel Service - How much fare from Rawalpindi to Gilgit by bus

Bus service from Islamabad to Gilgit, Hunza Travel Service Does Faisal Movers go to Hunza? Which is the most luxurious bus service in Pakistan? How much fare from Rawalpindi to Gilgit by bus? How to get to Hunza from Lahore?