If you are planing solo trip for a 5 days it"ll be 4500. you can book hotel 1965 in manali its a very cheap & clean room there with beautiful view. & i you wish to visit in manikaran here you can take a room in gurudwara manikaran without any cost and get langar(free food) too. if you want more details about the trip you can inbox me i'll share my experince with you.
regards.