Put a 1.3 Ka Bellhousing on your IB5 box. You could just use the Ka box but it has very long ratios IIRC.

The Endura engine (commonly found in Ka's) has the starter motor in the same location as the Blacktop and the KA's use Ib5 boxes. I *THINK* the Focus 1.8 box is an IB5 so that *should* fit too.

Wiring.. Not sure.