so my kayak that i purchased quite a few years ago, i outfitted with a trolling motor. i want to register it but, i obviously do not have my original purchased receipt or bill of sale. it has a number stamp in it, as its fairly new. how do i go about registering it???? im frustrated trying to find the info on this and would rather not stand in line at the dmv. any info would be awesome! and i already have my boating license so i dont need any info on that. thanks in advance