OK Problem solved
I found the Bridgestone BT46 Battlax(successor of the BT45)tires are just what I was looking for.
They have So many different metric sizes which will fit many vintage bikes plus modern bikes.
I ordered a 120/90V17 manufactured in 2020' for the Rr. to start:cost me $146.26 to my door.I'll order a BT46 100/90x16 Fr. next after some more $ comes in;it'll cost me $110 to my door.
The rear I got from Chaparral/chapmoto.com and it arrived overnight.