Converter or Inverter for 2hp Bridgeport mill

I have just taken delivery of my own Bridgeport mill and want to
know which is the best option for powering the machine : an inverter
or a converter.
My research to date suggests that a Hitachi L100 inverter is the way
to go however I want to question this as follows:
1. I can run a dedicated 20A or 30A supply to the machine which
should be able to handle the startup current demand of a converter.
2. If I use a converter I can use all the original Bridgeport
systems without mosification ie Bridgeport speed control,forward and
reverse,3phase coolant pump and shaping unit which is attached to
the machine.

My plan is to circumvent the original Bridgeport wiring and drive
the Main motor(s) directly from the hitachi unit and setting the
motor speed at the low speed of 1400 and not using the valiable
speed control of the machine at all. The hitachi will give me speed
control by varying the frequency however I do intend to use the
original forward reverse switch. In addition I plan to replace the
coolant motor with a single phase model.

Am I doing the right thing.