As long as you are not doing any off roading that is fine, if you are, that muffler will probably end up getting ripped off. I'd like to see some pictures of the under side myself. Just curious about how you routed the pipes. Freak did it on his 78, but it was combined with some other modifications to make it practical.
Also keep you images to around 1024 x 768 max, medium quality. That makes it a lot easier on the guys that don't have a high speed internet connection.
Good luck,