Perhaps you could cut off the top half and epoxy/bolt a new piece of plastic to the lower half? The big problem is the sharp curvature of the DT windscreen. I've read that you can put plastic in the oven and bend it when it's hot.
I use my grinder with a 1/8th inch metal cutting disc to cut across windscreens, using masking tape for a guide. Don't use a saw, the screen will shatter.
In any case, I'd have at least a three inch wide glue/ bolted joint where the pieces mate. You wouldn't want the new top half to fly off at 70 mph. I guess the question is: Do you want to see...or stay out of the wind?
On ebay you can buy an adjustable plastic wind deflector for $20, postage paid from China, with hardware, that you clamp to the top of the (now cut down) screen and you can see through it. I dunno if that $20 includes postage to Israel, though.
I recently bought a new, Kymco factory-made windscreen that was a perfect fit for my Downtown 300i from Leeson's for around $100. They are at
https://www.leesonsarcticcat.com/contactus.htm. I have found them to be the cheapest and most helpful providers of Kymco parts. Ask for Lee if you call them.
Good luck.
