Underground Connector (Pipes)

I would like to have in late game sort of an underground pipeline.
Instead of building not nice looking pipelines all over the map.
Also the longer you play the more different things you should have all over the map...so i need a pipeline:)
Proposal:
Available from on around tier 3 building components (red ones).
You may possibly make it as a starting option for the map, since its a little cheesy:))
It should be like a start and another exit building with x amount of inputs and outputs.
Throughput like tier 2 pipe and use some power.
Amount of inputs and outputs should be upgradeable like 1 to 4 of each or just a number.
DIstance it covers should give the price when building.
Building with tier 2 components (yellow)..
Connection should be done when builing the exit and it would stay like built.
If exit is removed then it can be placed again from starting building to another place.
The underground pipeline should be just virtual and not influencing digging or else.

I want the underground pipes, but I want it at the beginning of the game. Underground belts as well.