There wont be a kit to suit a 4AFE. You could try and retrofit a 4AGZE SC12 onto it, you might even get lucky and it might bolt on.
As for controlling it you'd probably just have to have the electromagnet clutch controlled by an in cabin switch.
I am currently selling two SC12s :y: EDIT: people make 7AGZE's with a 7AFE block, I'd assume they are similar to 4AFE blocks, and the SC12 gear bolts on I'm pretty sure. I have mounts, tensioner, crank pulley etc.