[MrBasse]

if you spread the load out enough 1/16" wall tube will hold up to a lot of force before failing. If I knew what you wanted to build, like I could actually see it I'd know for sure, but I think either of those options above would work.

As for broaching thick stock, you might have to flip your part over to remove the broach so you can clear the aluminum chips out of it so it won't get stuck on you. But it should work fine if your press is big enough.