You can always run RG6 and terminate it yourself.
Absolutely, especially for a 60' run. Once you make your first set of cables, you'll never buy retail again.
You can actually order RG11, but it's not necessary until you hit 150' runs.
Coax Cable Signal (Attenuation) Loss per 100ft
Loss at RG-59 RG-6 RG-11
1MHz 0.4dB 0.2dB 0.2dB
10MHz 1.4dB 0.6dB 0.4dB
50MHz 3.3dB 1.4dB 1.0dB
100MHz 4.9dB 2.0dB 1.6dB
200MHz 7.3dB 2.8dB 2.3dB
400MHz 11.2dB 4.3dB 3.5dB
700MHz 16.9dB 5.6dB 4.7dB
900MHz 20.1dB 6.0dB 5.4dB
1000MHZ 21.5dB 6.1dB 5.6dB