Hm
No Way to Cut something Out, to make them lighter? Or work on the inside of the Hood?
I saw a Pole with some holes in the back, just thought about it.
If you glue the pole back correctly, you do not need the rivets or screws, they just there to hold the pole straight while the glue dries!Factory pole is one of the lightest options. Just needs to be reinforced around the rivets. Or shorten and replace rivets with stainless screws.
As mentioned, the hood is just gonna be heavy. Not much you can do besides get a new one or if you feel up to it, make a mold and build your own hood.