Keith,
Nothing wrong with any of your suggestions, but why not start out
very simple, as in a dipole. It will at the very least give you
something to make comparisons against. When your better half sort of
gets used to the idea of wire hanging in the air, then you can make
changes. You might even ask her what color of wire she thinks would
be 'best'. No, it won't make any difference except that it shows that
you respect her opinion... sort of. (If she reads that last part, you
are up that proverbial creek!)
- 'Doc