make sure you look at engineering on the poles I looked into aluminum for
my 51 foot steel junk and they were way heavy by the time you get strong enough
I used Fiberglass pole 45 foot I can give you the makers they are really easy to work
with and do really good job. they are out of the east coast of the USA.
check for the yield point that's when it bends so far it won't come back.
mine with 650 feet of sail area made 85 thousand PSI at the base!
OH FORGOT WITH 30 MPH WIND.