Since I look for comfort and no buffeting going down the road----have spent money on both Puig and Givi for maxi scooters---both are good----and come too tall for safe look over going down the road and have to be cut down----little experience here, on 11th maxi scooter since 1990---over 400,000 miles with them---cut down Puig Touring on my current XTown 300i---Laminar Lip added, bolted on----about as good as you are going to get with maxi-scooter and nose being so far from tip of shield.
As to DT 200, from pictures it uses same Kymco simple mounting as DT300, both bodies appear to be same size----so the Givi should work.....attach cut down after mounting and making sure of size/cut. Good luck and enjoy the comfort, especially in the cold/wet.