Sorry it took so long. I am going to attempt to attach my PDF here. I finished it tonight and began it late 2021. The way in which I corrected / cleared up the photographs varied, but it is all very legible; particular attention was paid to the schematic, of course. We all know how irritating it is to say "is that a 6 or an 8!?" whilst squinting at the screen. No squinting here. For the record, this took a few hours between 2021 and now, so if I see this on eBay it will be quite disheartening. I paid $20-$30 (can't remember) for the hard copy. The TW-4005 should essentially be a double of this circuit, but don't quote me, I don't own the TW-4005, just the regular 4005 and 4005R (rackmount? wider than tall version, see last pg).
Enjoy, hope it helps someone.
Edit: The max file size is 4MB and my HQ version of the PDF is ~8MB Posted here is the "portable" version, which is still legible but looks like crap to me comparing it to the HQ version. If you need the HQ version, private message me your email address and reference this thread. Thanks.