Since the other guys brought it up....
It just so happens that a very large percentage of vintage fiberglass rod are 8' 6wts. and there's many perfectly usable rods that sell in the $35-$65 range (and often less)
Shakespeare, Berkley, Heddon, Wright&McGill, Silaflex, Garcia all made some decent ones. You can look around for one like that and still get that 4wt too.
Unfortunately not all glass rods were created equal and it can be hard to tell if your getting a gem or a dog. Look for quality construction.
The Phillipson rods are about as good as you can get and many of those were rebranded as Orvis, LLBean, and many other smaller retailers. They usually go for $125-$175, but I recently picked one up for $40. Ya never know
Some people are partial to the Fenwicks, but there's many other decent rods out there that you can pick up for a song.