This place won't ship to California, Pennsylvania, or New Jersey (scroll down in the ad). Generally, others might not ship to you, either. I am sure there are those that will. That being said, if the Vermont route works for you and you are comfortable doing that, than go for it! Otherwise, you might want to consider a different bike; however, I do understand the draw of the Hawk being its pricepoint.
https://www.superiorpowersports.com/...250db-hawk.htm
Edit: the same dealer shows the Taotao TBR7 for sale and 'in stock' (many dealers have sold out and have shown 'out of stock' on their sites for months). I know that the Tao is 49 state street legal (Californians need not apply) so you might have better luck with registration in PA.
https://www.superiorpowersports.com/...250mc-tbr7.htm