The 2 core cables are actually for end user and the cost sounds expensive to me. This is because these are usually not well protected and will be easily damaged.
Will speak to my contact and try to get details. Would appreciate if you can estimate length requirement.
Yes, but ISP factors in some the cost for replacement etc while for you everything will be chargeable.
Also, are any of the ISPs connected with Alliance?
@SayantanGR could help with some contacts as well.
Also,
@vishalrao has gotten his society wired for optical he could give some ideas.