Forks upgrade advice

Hi
Does anyone know what top and bottom yolks I can get to change my old forks to upside down forks, on my 1981 KZ750E.
From which bike make and or model.

Any advice appreciated

thanks

i think the guys get a whole front end off a wrecked or parted modern bike....then they grind the weld off the bottom of the kz bottom tree and free the steering stem....then do the same to the modern trees and have their kz stem pressed in with some fabbing,then it will mate the new trees to the kz steering neck.......there is threads about it on here somewhere.....so the problem then is mounting your kz hardware to the modern top tree...hence irsh will thread on top clamp machine work...also i blelieve OLD MAN ROCKS bike has this set up all neat & finished too...thats a good thread to research....good luck.....craig

cheers man

irishwill has done this conversion using late model gsxr forks and he built his own trees. in fact i think he has a few extra set's built.

Upside down like this? 94-96 zx9.
nice and tall.