so, Guido, if you really want to "See the problem and all possible solutions" (to be able to rethink this concern) then, like they teach software designers, you get to start with a blank sheet and discuss ALL the possibilities, first by considering the actual goals (like when we travel, we start with a place we want to go {'the goal' let's use going to see Grand Mom as 'the goal' for the sake of discussion}, then consider how to get there), and then consider ALL the possibilities. I still think you will come to the recognition that you can not yet make 'the load' go away [teleportation will fix that, like in Star Trek], and that 'the load' will block vision as much or more than the mast would, even when there is no mast (a pallet jack, with NO mast still has a blind spot on the other side of the load from the pallet jack operator). One possibility is to move the goal of where you are going with 'the load' (have 'the goal' come to 'the load'. {like when going to 'see Grand Mom' as 'the goal' in our travel, we instead have Grand Mom come to our house}.