Unfortunately I don't have any vacuum bags, so it is difficult to help.... The tube is rectangular with rounded corners and slightly bevelled.... I think with the right angle it should work.... But just, I can't report from practice....
The xc8045 still comes with the crevice nozzle. I deliberately bought the xc7043 without the crevice nozzle because I wanted to buy the CarKit and the FD is also included in the set.