So I'm planning on getting a tattoo

I'm wanting to get the Black Parade 10th anniversary logo, but replacing the letters with the font style from the new tour.

I'm thinking leaving the "X" for the 10th anniversary might be weird, so I'm leaning towards 25 (since I saw them live for the first time this year).

Here comes the problem: I'm an idiot. What are the Keposhka letters for the roman numeral of 25? (XXV)

Also, what's your opinion? Keep the "X", leave it blank, go ahead with what I have loosely planned?