>I wonder how cheaply it could be done for 1 customer Depends on your definition of cheap. Your biggest expenses would be monthly bill to your fiber provider,

>I wonder how cheaply it could be done for 1 customer Depends on your definition of cheap. Your biggest expenses would be monthly bill to your fiber provider, then any necessary rent for backhaul sites, then the up-front cost. I can't say for sure the monthly cost but it would definitely be in the low four figures.