Paul,
Another suggestion, end feed a center fed dipole. That
doesn't
make much sense, but thats because I don't know how to describe
it.
In effect, run the coax ~through~ one half of the dipole to the
center where the feed point is. One way is to double the braid
back
onto it's self. The folded back braid makes up half the dipole,
the
center conductor is the 'other' half. I'm sure there are better
descriptions and pictures somewhere, I'll see if I can find one.
'Doc