You still need the dizzi for 2 reasons...

1) It drives the oil pump
2) There is a PHASE sensor in the distributor used for the ECU that is still needed.

Some people fit this PHASE sensor in the cam cover as a secondary modification and fit a modified adaptor to remove the dizzi.
Expensive !!

For me personally, I would keep the dizzi and just fit a blanking cap as this will be cheapest.

The old coil wires can be taped up or cut back and hidden, your choice and if left alone allows you to put it back to standard if needed..

As for the coil, this all depends on which one you have but best fabricate your own bracket or use an existing bracket from the car the coil comes from.

Hope that helps.