The best advice is to think LOOONG about it. It is a permanent thing. I don't think you have to wait till your 30 but seriously consider the option of not wanting it 15+ years from now. Do you love the Fett man THAT much?
I know I do... haha. I have that same skull BH4517 has on his arm except solid black on my leg. I love it. Also, go to a reputable tattoo place. Don't settle for a place because its "cheaper" than the others. Look at his work, see how talented he is. Make sure he can replicate it clean and crisp. Best of luck!
 El1te