For those of you with documented boats, where did you mount/affix your registration number? Our new (to us) 370 Sundancer is now USCG documented, so I've ordered the USCG number placard with our new # from Boatoutfitters and need to permanently mount it on the boat. The engine room on a bulkhead sounds like the most logical space, however I was curious if anyone has mounted in an interior space such as a bilge storage area. In addition, as I read it it needs to be "permanently affixed". I plan to use adhesive of some sort, but am curious if I need to add rivets/screws as well? Any advice or pictures would be helpful, as I'd like to ensure I'm both compliant, and don't make a mess and have to do this over again. Thanks!