How hard was it to work with RG11?
I don't think that I've come across it before, and, the way I've seen it described, it reads like an extremely stiff/rigid cable.
When my church signed up for Comcast Internet, Comcast ran Hardline (~1.6 mm diameter) from a tap to an external demarc, and had me run Perfect Flex P6ET77VVWLD from the external box to the phone closet (aka my office).
Total distance was ~140'.