I work for an ISP, typical cost for just labor + materials for fiber is $10k per mi., labor being the majority of the cost. I live in the midwest and fiber techs start getting paid around $25 per hour and it can take a crew of 2-3 guys for a few hours per household which if you have in-house guys isn't as much but if you're contracting it out can inflate cost 2-3x. That's if you don't have to make the run down the street and live close to a node.