@MTN posted:I saw a couple snaps of MEC E7s and they had small square windows, much smaller than the standard rectangular openings most had; there are also MEC snaps showing E7s with the standard rectangular openings - I guess they didn't have any small porthole versions like the MP and KCS owned.
I can’t imagine KCS buying a used E7 and adding new porthole windows. But this is not an area of expertise for me. I’ll ask any KCS and MC experts chip in here.