Electrical wires identical

Here are my notes:

GFCI protection is required for all receptacles in unfinished basements (210.8(A)(5)).

Any habitable room in a basement may require an emergency escape route (see this answer for more detail), so check with the local building department. Note that "emergency escape", is slightly different than "egress" even though the terms are sometimes used interchangeably.

So the catch-22 here is. If you call it habitable space, you don't need GFCI protection, but you need an emergency escape route. If you call it an unfinished basement, you need GFCI, but not an emergency escape route.

As of NEC 2011 (I think), a grounded (neutral) is required at switch locations (404.2(C)). So only cap the neutral at the switch, and connect it at the junction.

The labeling is helpful if you are doing work in the future, but may not be helpful to another person that doesn't understand your labeling system.

Assuming you don't want to/can't remove them completely, (i.e.- back to an existing junction box, or all the way back to the breaker box), you need to properly terminate them (capped with wire nuts) in an accessible junction box.

In other words- install a junction box in, put wire nuts on the wires, install your cabinets, with a hole where the junction box is, and put a cover plate on.