Not sure how a Honda Navi is going to be better than my 80mph modified Hawk....Honestly, the best option would be to sell off the Hawk and get a Honda navi.
110cc, scooter transmission, still do 50-55 mph, and brand new from the dealer (without any markups, and DO NOT PAY THOSE BASTARDS ANY) would be around 2400 or so with tax.
You could also look for a used motorcycle (Just stick to anything Japanese) for around 1800 you can find a older cruiser or a dual sport that will serve you well for a long period of time.
Or better for me as a 6ft 4in. tall, 260lb man.
"Better" is always subjective. There are other, bigger, scooters out there I could get for less than the Navi made by Lifan, which I did also consider.
It's all kind of moot at this point as I am now working about 12 miles away from work again, and it's all highway.