Isn't Latex text based? I would have thought it would be more a problem getting a BTC symbol as a font character or can a package provide that ability? You might look into code pages or unicode to see if you can use the Thai Baht symbol. It's somewhere out there.
Sure it is text based, but it has "alphabets" for pretty much everything - from math to playing cards to chess pieces.
Surely we can do better than the Baht symbol.
By the easy - Satoshi's original paper was typeset in LaTeX - naturally. :-)