Three Things
1) No one will ever notice except for you.
2) If someone does notice, tell them that it's supposed to look like that.
3) Work to reset your expectations....tattoos sometimes have imperfections. Actually, many times they have imperfections. It's just part of the deal.
First of all don't copy but find a good artist you trust and let him make a unique design for you out of your vision.
About the price, anyways from 150-6000$ depends on size and mostly who is the artist. For example take a look at Mumia's Instagram page. He is one of artists could do it perfectly but most likely it will cost you 3000+$