What would it cost to simply get a tatto saying 'Fly High Lil Peep' on my forearm

Don't know I'm just a customer

Tattoos have a varying cost. It depends on size, difficulty, and time. On the tattoo a font would have to be chosen, color and size. It would likely come down to how much pre tattoo work is done and time it takes. It is best to speak to an artist directly so they can get all the details necessary and can quote a price accurately.