Yes pretty much, same price for everyone, and depending on you previous ranked ill get u as high as possible. Somewhere beetwen gold to plat. I come up with something beetwen all the prices :)
A professional player, will win as many games as it's humanly possible on your account, with a average winrate of 90%. In order to secure higher placing outcome, it's a good choice to let the professional player duo queue with another high elo player. In most cases you will end up in gold league, if somehow we wont reach it, fell free to ask me to refund any looses made.