The original throttle cable through the 2S is just too limited and isn't going to get to the linkage for that ITB’s. I had a take a look at some aged Toyotas on the wrecking lawn and found one that would in good shape from the 1989 SV21 Camry. It’s https://toyota-4age27924.bloggazza.com/38014397/an-unbiased-view-of-4age-20v-turbo-engine-for-sale