Thinking about it, those ceramic tiles probably function as a heat shield, ala' Space Shuttle. They'd reflect heat but be very slow to absorb and radiate it.

Great thread, ranker.
Like you, my efforts don't fit a beginning to end, my mod thread. So it's a bit inspirational to see one laid out as where you're at with pics. I might start my own pilgrim's progress thread for my V2.
Finally have the second V1000+ and all day free to strip out it's internals.
Can't do a components pic, as there's no place free to lay them all out in the house and I'd be able to add up the outlay. Don't want to do that!