Hi Gerald,
A while back I was researching for a plasma table purchase. If you like, I can email you a copy of an excel spreadsheet that shows comparisons of 4 different, but relatively small machines. Keep in mind that this information is about 2 years old.
We finally decided to go with an MG Systems machine, upgraded from what is on the spread sheet, but never did actually purchase.
A great person for you to talk with is Tony Kaiser with Capital Machine Technologies. He could hook you up with the right machine to match your requirements. He can be reached through his Atlanta office at 800-621-9751.
Good Luck,
Tim Gary
Gerald,
I spent 2 years researching CNC plasma/oxy-fuel gantry machines for a previous employer. The machines purchased were capable of cutting 6" thick above and below water and had contour bevel heads for 1-45 degree 360+ degree rotation cuts. Would be glad to share other info as needed.
John Folk