Deni foxfiveVJC wrote:
2. A vertical wire supported by a 40'-45' fiberglass pole with an auto
ATU at the base, eg SG230.

If the vertical is much over 5/8WL long, its take-
off-angle is too high for proper operation. 5/8WL
~600/f = 21 feet on 10m. Your 40-45 foot height
would only be good up to about 14.3 MHz unless you
figure out a way to shorten the wire above that
frequency.

Here's another idea using the same space and this
is my present vertical antenna. Make the vertical
21 feet long and locate its top at 42 feet. The
feedpoint is then 21 feet in the air. Install
elevated radials acting as guy wires at that 21 foot
level along with the SG-230. That will give you pretty
good 40m-10m operation. For reasonable 80m operation,
install a loading coil at the feedpoint, in for 80m
and shorted for all the other HF bands.

According to EZNEC, on 10m, that antenna has:

*** 4.2 dBi omni gain with a TOA of 11 degrees ***
--
73, Cecil http://www.w5dxp.com