Yeah so it was pretty straight forward.
I filled out
HSMV 87002 and brought my reciepts. Basically they want the HULL, DECKS/RIGGING, and MACHINERY/ENGINES filled out to correlate with the vendors of the reciepts you've brought. Basically all the receipts prove is you paid tax on the materials that you claim went into the fabrication of the hull. I didn't have to submit it to FWC for inspection because it is under 16ft. No photos had to be provided.
I did leave engine blank and stated that I haven't decided on a motor yet. I have one, but I've been on the lookout for a newer (than 1996) model 2 stroke Yamaha. They questioned me on that a bit because they said they could not proceed without knowing the engine type and fuel. I said that it would most definitely be a gas outboard and there was no way it could be anything else. They accepted that and moved forward.
The guidance states to bring HSMV 82040 as well, and I did, but they did not use my copy because they already have the necessary info from the first form.
All in all it was pretty straight forward. This was in Orange County, FL, so of course your mileage may vary.