Some tires have an H or MV or V What do these stane for?
In the 80's, the GPz was the souped up version of the the standard chain drive model. Then in the early 80's you had the touring only ZN, which used a modified KZ1300 6 cylinder engine in a totally new touring package, frame, fuel injection, etc. This was followed by a smaller 4 cylinder touring only bike, the ZG. To tell you the truth, even though I've been a loyal Kawasaki rider for 29 years, I have a hard time figuring it all out. Sometimes I think there is no pattern to their model lettering.
Give it a shot, if you can weld. Shouldn't be a problem. If not, just take it to your local shop, a couple of hundred and the jobs done.