So it looks like there's no magic solution for homeschooling and working at the same time. :P
This summer, I've been getting up at 5 and getting most of my work done by the time the kids wake up at 9 or 9:30, so I think I'll stick with mornings. I'll have to take a break to get my middle two off to school, but I guess I can finish up the rest after we're done school?
Looks like it'll be a bit of trial and error.
Thanks.