That only works on switches and routers that support LAGG/LACP AND you know how to configure it correctly.

Bad dasiy chain, bad

Short answer is: If you want something non standard, you are going to need to provide it yourself.

How EXACTLY do YOU WANT them to run the line?

You know it has to come from the nearest pole so figure out the path and figure out the transport method.

Mostly buried lines are THE BEST outside of your exact issue which is remedied with a 2-3inch buried PVC EXACTLY where YOU want it to cause YOU the least amount of issues.

If YOU really don’t want it buried, YOU figure out how to do it aerially, even thought thats probably harder unless you already have a nicely strung path.