That's awesome! I love reading about Toaster Oven Reflow projects. At my last internship I was surprised to find that a reflow oven was just an industrial/beefed up pizza oven of sorts. It's pretty cool that we can have that technology, though a bit cruder, in our homes.
I'd like to point out that you can reflow boards with components on both sides due to the surface tension of the molten solder. If you leave enough space on two sides of the board, you can sit the board on a couple rectangular blocks of aluminum, suspending the board and components above the metal grate. You'd be surprised