I'd start with my local Toyota dealer. Chances are it will have a copy of the relevant DVD in its archives, just as it would have copies of technical manuals for vehicles going way back into Toyota's past. Whether or not you'll be able to make yourself a copy of the DVD is another matter, but it can't hurt to ask. Failing that, check out your local Toyota or four-wheel-drive club whose members might have the DVD and will be happy for you to copy it. Whether that's a copyright breach, though, might be worth looking into. If none of those options are available, I've seen the DVD in question advertised online. It isn't cheap, though, at $200 or $300. Perhaps there are websites out there that can download a copy of the files which you can burn to a DVD for a fee.