Yep just order what you want than you will have the truck of your dreams.
As a side note all Rams (and the others) have a mirror module that must be changed out when swapping out mirrors. If say you have a 1500 Ram with the power folding non tow mirrors you can upgrade to the HD power fold tow mirrors by just buying the mirrors. The truck already has the folding mirror sales code and module in it. This would be the same for any HD with non tow power folding mirrors.
I ordered my 1500 truck with the tow mirrors (non power folding on 1500) so in order for me to get the HD power fold tow mirrors I would have to buy both the mirrors and module than have the dealer add the power fold mirror sales code to my truck. The wiring is all there just needs the sales code.
Most dealers will tell you it can't be done do to the cost involved in replacing the parts and programming the truck. I just had the DTRL turned on, on my truck. It took the dealer calling in the service Engineer to get it done because the sales code was not showing up under my trucks vin. Took them 3 hours to get the DTRL on! The cost to me was zero do to the fact the dealer likes me, however if it wasn't for that I would have been charged three hours of shop time @ $95 per hour!
Don