Is the speedo cable driven? (I don't know much about Corollas) I hooked up cruise control to my Caldina which has an electronic speedo. I was told by the place I bought the kit from that generally in Toyotas the speedo wire is Purple with a Yellow stripe. You may just be able to driven your old speedo from the new loom.
I haven't tried to changed speedos yet but am looking at swapping my Jap spec 180km/h one for an Aussie version (its weird driven at 110km/h with the speedo needle way past vertical!) You may want to try just plugging it in & see if it works. Otherwise, if the speedo dial is the same size as your original, your may be able to dismantle the cluster & swap the whole mechanisms within.