i would have thought as long as your pump is decent enough you'd be fine, unless you're cleaning at crazy hights with them. it's not something i've done as yet but a lot do and don't read much in this regard.
by the way, i think it's good to have an alloy pole too, virtually indestructable, so if the light one breaks, you can carry on, also think a heavier pole is good for first cleans, but that's just my opinion.
if you cut an opening in your bulkhead, won't it fit along the top? i have mine resting in the footwell of the passenger seat at a diagonal, but i've got a short bulkhead

40 ft alloy? heavvvvy!, can't you drop a couple of sections? get it to about 7ft closed. mines a 30 ft but i drop the last section, only need it twice a month could drop the next and still do most work, but don't like the top section-too whippy, so like you don't often use it, well technically i hardly use the pole at all anymore!

Yeah might try that, I have a couple of customers that I need the full extension so can work around it. If I get id down to about 7ft I might be able to fit that in a small van.

Do you carry yours in a van? Im in the process of changing from a trailer to a small van.

yeah, i carry it in the van, as i said, bulkhead is only as high as the seats and slides into footwell easily. always leave it in, even though rarely use it. a back up.
as paul says, clx is next on the radar