Uneven hairline due to a widow's peak - the right side of my hairline has receded far. How much to restore? (Photo)

The cost of hair transplant or any cosmetic surgery varies widely between doctors or clinics.  The method of harvesting and technique will also play a factor.  It is best to start by seeing a doctor for a consultation.

Your hairline could likely be made even with around 1000 FUE grafts, but you need to understand that unless you begin medication to slow the hairless down, you will likely need further procedures in the future to keep up with progressive hair loss.

A great first step would be an online consultation. Often you can submit photos to top hair restoration surgeons for a complimentary evaluation. This should help lead you in the right direction. Having multiple consultations with different doctors cannot hurt. 

Hair transplant can be an option for forehead reduction and correcting  asymmetry on your frontal hair line/forelock.I advice you have a FUE; you would get the desired hairline in just one sesssion of dense packing hair transplant.
During the placement of follicular units there will be a mixture of single, double and a few triple grafts, which help to create the soft look of a natural hairline. For the first few lines always go for single grafts, later doubles Triples and others.So that a smooth transition will be there giving undetectable hair transplants.

Ir is not clear that you are actually balding now but a visit with an expert will determine this for you and then advise you on the best hair transplant option. I don't like hairline lowering procedures in men bgecause half of all men will eventually lost some or all of the frontal hair and a hairline lowering surgery has not real good second ct other than a hair transplant