I already have two runs of Knu 1/0 red front to back for my +. Now i wanna run two matching runs back to front for the -.

I would take two lengths of 20' or one length of 40'

Would prefer blue, black, or anything other than red, but not a huge deal.

I can get 50' on Egey for 88 shipped so I would like to spend ~70-75