Where can i find a Hyosung GT125R or any other decent 125cc in the US, preferbally the Florida State

this webpage has 13 florida dealers listed with phone numbers and address
http://powersportsgateway.com/html/Hyosung.aspx

Check out cycletrader.com but usually if a dealer has the bike they would not spend the money to advertise it. Because it is not a well-known brand and small displacement the bike would resale for little money.

If l were you l would look for any kind of motorcycle dealer arround where l live and go there in person to check out their used inventory. bigger dealers that sell more than one brand are preferrable.

l do not know how easy it would be but try and see if you can import the CBR 125 from Canada. We have it here for 3,500$ CDN and if you're looking for a 125cc it is a really nice bike IMO. It is 100x more reliable than a Hyosung.

Jacksonville and Hudson Florida and the GT125R is new to the states so you might not see it advertised.