Hi Fred,
Glad the new house plans and new XYL are working out well!
Yes, generally, you will get a better pattern and more efficient
system on 75M with a flat antenna vs: inv vee. Inv Vee config
is OK, but shud be the last, last resort after trying to get the
ends up high. It's actually better to have the ends higher than
the center, if you have a choice, but flat is best.
The end and center supports can be metal... they are virtually
invisible to a horizontally polarized antenna. No magic with telephone
poles except for the hi hi FB society acceptance cuz
they're everywhere...
Also consider some of those sturdy but inexpensive aluminum
military surplus 60'-80' rotary masts. Gary/INR is going to be
erecting a pair of 5el 6M Yagis on one - they are strong and
can be erected by one guy. Fungus green is pretty easy
to hide.
If you go wid tele poles, make sure you can climb them
[spikes, etc] so that you can add a rotator and beam later
on.
73,
Tom, K1JJ