I wish Eletech can do interconnects as well, but the demand of such seems fairly small.
Exactly. I have a couple of Eletech cables and they are at top quality.
I asked them if they would accept custom orders for interconnect cables, and their answer was YES!
I recommend you to contact them after next Thursday (18th Feb), because they are closed until 17th for Chinese New Year Holiday.
I'm considering to order 4.4mm to 4.4mm Iliad and Socrates one. (I have a Socrates for my IEM.)