The Sabre risers would fit and lower the stock drag bar as would the similar ones from the 750 ACE, most Shadows of the 1990's on seem, in my limited brief experience, to use the same riser spacing and mounting setup.
Now the problems you are likely going to have will be, the controls hitting the tank at full lock and binding of the too long cables.
The first one you may be able to juggle a bit to just skim by, or you may be looking for a different bar with a bit of angle or rise.
The second one you can probably overcome with changes to cable routing.