I don't know if this is any help, but with my Cressida (MX83) I used Whiteline Universal link kits with spherical bearing rod ends. Can get varying lengths from 60mm - 360mm so should be able to find something to suit.
Note I have a Cressida, so hope this will work with the Supra. Heavy duty parts that work extremely well on the MX83. Have a look at the Whiteline website and their catalogue.
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