you have to be 18 to get ink - maybe younger with parental consent, but I'd call & check on that before you got there -
a good artist charges by the hour & rates are usually around $150.00 an hour ( prolly more because its H & H & @ Universal )
ALSO, keep in mind, that after getting ink, you will want to "protect your investment" (after all, it will be with you forever !) and swimming & direct sun are no-no's!