James barrett wrote:
... should my thinking be to put up a dipole for 80m and tune it down
to 10, 15 and 40, or should I go with some other length?

An 80m dipole works well on all HF bands. I tune my
80m dipole system by varying the length of the ladder-
line so I don't even need an antenna tuner.

http://www.w5dxp.com/notuner.htm

My favorite bands are 40m and 17m.
--
73, Cecil http://www.w5dxp.com