Im quiet sure LSD driveshaft brackets are the same between auto and manual, but non-LSD brackets are different between auto and manual, so be careful depending on which path you travel. And yes, it has to be ka24, otherwise you will need to fork out more cash to adapt the ca20 box. You can also run your auto computer once converted, it has more torque than its manual counterpart. Im not sure of console differences, but my auto one and manual one seem almost identical except for the plastic surrounds for both auto and manual.
I would recommend buying new bushes aswell, while its all out.