We use Epiphanes thinned with Captain's. Looks great and we do maintenance twice a year. BTW- We're in Florida/Bahamas for about 8 months/year
You can register it where you like, but there is no sales tax in Delaware. If the boat will spend most of it's time in Florida I would pay the tax...
If the vessel is clearly marked as "Tender To" you are allowed to use it strictly for "Ship's Business" (whatever that may be). I have had several...