This probably comes too late for you, as you probably went ahead and got your tattoo over the weekend, as per the stated intention in your post.
The lack of responses here reflects the fact that this is not a typography issue at all but a design one. Had you posted in the Adobe Illustrator forum you may have had more luck.
Keep that in mind for next time.
He did, and ended up with the desired triquetra, but the tattooer turned it down because of (too much) bleeding.