I have a 30' cord made up for stoves with 8/4 with very similar ends . when I was renovating, we could move the stove into another room and the customer could still use it.
Also had an array of 10g cords for the 240 volt hardwood floor sander (which has all been sold) without the neutral so we could plug in to a stove or drier receptacle.
I still have various 10/4 & 10/3 cords with a 30 or 50 amp plug, depending on what I want to use it for
For OP having 4 wire is maybe never going to be used, but one never knows, and after all, this is GJ, where we are expected to over build & over spend!
