I agree, the M12 Fuel is fine for those who aren't using the tool all day, every day. If you have 2 battery packs you're good to go on just about anything.
You can relocate the forward cross bar to the forward position to make the space between the bars longer. Mounting it at the rear position lessens wind noise. I can't envision any way to design a roof rack that would not have to be removed before taking off the rear cap.
Maybe it's just semantics, but if the 2021-2022 changeover is a guide then your 2022 order won't be cancelled, it will be converted/rolled-over to a 2023 order. You will have to confirm the conversion. Don't let the dealer cancel your order and put in an entirely new order since you would lose...