In reply to a post by DFScale:

In reply to a post by jpm:

You could install something like this which an engineer on the day should be fine to use, just note that the white cable jacket cannot run along a wall where it would be exposed to weather, it's designed to rear entry into the CSP and is what would get installed in a new build.

https://www.ebay.co.uk/itm/266510717813

I would reconsider running something like a fibre cable in a way that cannot be easily replaced in future but it's your call really.

That is a reel, which OP would have to terminate. This [https://www.ebay.co.uk/itm/145407183320] would be more appropriate, because it has the ONT connector in place. But Cat 6 ethernet cable is the right way to do this, with the ONT as close as possible to the CSP.