You can use the 75cm eliptical dish, which would give you both satellites. I think a 60cm wouldn't work, as the signal drastically drops off once you are outside of Canada. I'm in MN and got a 75cm.
Another option is you could use 2 dishes and tie them together with a 22khz switch.
The LNB's are KU band, and not the DBS LNB's that DIsh and DirectTv use