Holy crap that thing is awesome! The best part is while you wait you can customize the crap out of it, looks like you did haha. I think any kayak with a motor needs to be registered in NJ, you might need a title as well and to get the title you have to give them the manufactures MSO. I wonder if you have to get your boating safety certificate, that might just be for saltwater though.
It was such a pain in the ass to get my boat that I built registered in NJ. I had to get a marine surveyor to come out an do a thorough inspection and write up a report (32 pages holy crap!). Provide him with the plans, a list of materials and build sheet, receipts, photos, etc. After I got the report I had to write a letter stating it was me who built it with all the build info, get it notarized and send that stuff in to get insurance.
Then with the insurance I could trailer it down to have the State Marine Police inspect it so they could give me my hull ID number. Then take all that crap to the DMV and go through the whole process of proving it was my boat again to get my title and then finally the registration. It seems like it took forever.