Gecko and postprocessing

Hi to all,

I'm trying to build my CNC XY table, and some questions about the
CAD/CAM are not clear. I will be using 2 G340 drives (X and Y) and
probably TurboCNC.

As the CAD / CAM, I'm trying Visual Mill and Surfcam (Free versions)

1) When is time to generate G-Code, some machines are presented
(Fanuc, Haas, Fadal, ...), because of the G-Code variations, I think.
Whitch is the best for the Gecko drives and TurboCNC?

2) I'm going to use a plasma in the table, so I need a delay before
start to cut and to ignite the plasma. How do I do this ? I must edit
the G-Code myself ?

3) The packages that I've mentioned were made for milling. I don't
need rotation, no aproximating distance on Z among others that I
generate in those packages. I must edit the resulting G-Code to
delete those instructions, OR if I send them to the TurboCNC (for
example) they will not have a efect (since I haven't a Z axis or a
rotating tool), and only the desired output X and Y moviments are
obtained ?

Thanks.