50 amp sore cord question

I think we have the amperage issue covered but I'll post a caveat about making a 50 amp cord. Unless you have some special need to make your own cord (distances involved, unique connectors, etc.), buying an off-the-shelf cord is going to be less expensive. I went through this exercise a couple of years ago and by the time you pay for the correct wire and connectors, a retail cord is less cost. I got lucky and found a Marinco cord at Camping World on the clearance table. It cost about half of what I was going to pay just for the wire.