Want to build dynamic headphones, just wondering about piece quality and sourcing.

VERY NOOB somhwhat post. So don't hurt me too bad.

Ok, so for my 2nd project I want to do the following:

Dynamic Drivers
3.5mm input on each cup
(Balanced?) Cable that ends at 1 3.5mm out plug since I have no balanced amps


Questions?
Where and what quality of 3.5mm inputs should I buy or be on the look out for?
Are there any places that sell nice material for cables? I dont need nothing fancy I just don't want that super coil and microphonic's!
And are there any places that sell anything besides Peerless drivers.
Last, as far as headphones go, can I include any type of pieces to make that go in between the wire and speaker to make it sound how I would like?