We started homeschooling for some of the same reasons. IL's were not supportive at first either, but as soon as they saw how much DS was learning, and not being held back at PS, they were 100% supportive. If you have the calling to homeschool, don't let others influence you otherwise. And HS'ing doesn't have to be a permanent solution. You can always try it for a few months, and see how it goes
As far as testing goes, if you want it done quick, I wouldn't bother with the school. Private testing will be quicker but can cost quite a bit. I found a local university who will be testing my DD with the WPPSI III for $75.
