I ordered in January, maybe things have changed but at that time if you didn't want the glass roof you could order 510A which deleted the roof, rain wipers, and power steering wheel adjust. Everything else, ER, Tow Tech Package, & Max towing were still available (and I have it all).
My guess is that everything required for the rain sensing wipers exist as it's just the front camera plus either software or a relay that then turns the wipers on or off as required. If we're lucky it's just some software setting and/or dip switch that needs to be changed. The problem is finding someone with the knowledge, and possibly tools, to make the change. It's not likely common knowledge.
I just checked Ford.ca - I can still build the same truck.