I am considering converting a Hiace 7K-E engine and auto transmission into an older corona or corolla .
I am interested to know how the auto runs? e.g. is it shifted by a computer and is that computer contained in the main ECU or a separate module? also the physical shifter arrangement, is it a linkage style or does it run a cable? will it be able to be converted into a column shifter setup without too many headaches?
also, finally - physically, how big is the box itself? will it fit the tunnel without too much drastic surgery, or am I dreamin' ? (luckily the car in question, an RT40 corona , is an auto already so that might help a little)

thanks for any help in advance, it really helps to know if things will work from the get-go before you go and lash out your valuable time and money only to find out your up in a dead end!