[HSMM-COS] Inexpensive mast options?

[Bill Bishop]

Hi folks,

I need a mast to put up the mesh omni & directional and mesh node, 
along with my 2M/70cm vertical, and probably a digital TV antenna.  
According to the directional antenna company, the wind loading on it
alone with a bit of ice, and a 60mph wind (which we get regularly), has
a 250 lb loading.   A weather station might be nice too.

 This puts a fiberglass mast right-out;  I can anchor the bottom into
the ground, and also against the eave of my house, but I'm not sure how
high above the (flat) roof top to extend (5 feet, 10 feet, ...).

 It would be a "permanent" installation, so it doesn't need to telescope.

 I'd like not to have to guy-wire it.

 Any thoughts on type of (aluminium?) tubing, thickness (1-2"), and any
other parameters?

Thanks,

->Bill