1 oz Radiant Tattoo ink in the color of Blue.
Too much depends on the arsitt and how intricate the piece is. The better the arsitt the more costly he or she is worth and the guy I use is at a375 per hour and 2 A4 sheets I think will take more than 4 hours in totalTake your design to a local arsitt and get their opinion. Any good tattoo arsitt will work with you to a) produce a design with you that you will be proud of and b) one that he or she will be proud of. They will be sure to be able to give you a near costGood luck with your ink