…or, if I’m wrong, could you let me know where you’re looking?
Your collection has wishbringer-r69.zip. This roughly corresponds to Test-Dev\Old\wishbringer. It can be compiled into what seems like a working .z3 file with only minimal changes.
Your collection also has wishbringer-invclues.zip. This corresponds to Test-Dev\Old\wishbringer\cheap. It can’t be trivially compiled. It’s missing several things, e.g. the INIT-STATUS-LINE, the H-BOLD constant, etc. It’s also missing the storybook that was added to the Solid Gold version.
If you compare these two versions, you’ll find that there isn’t a great deal of changes between them. It looks like someone just took the V3 source code and added a hints.zil file.
Adam’s collection also has a Wishbringer directory at the top level. This contains what appears to be a working Solid Gold version. It has a lot of changes compared to the non-working version: It has the storybook, the parser messages use brackets instead of parentheses, etc. Most importantly, that’s the version I managed to compile earlier today.
While writing this post I also noticed that Adam’s collection has a Journey directory at the top level. This, too, is different from what’s in your collection. From a quick look, it might be the source code for journey-r46-s880603.z5. The .z6 versions all have the text “glowing cavern wall. Not ten paces away”, but the .z5 version - and this source code - has “glowing cavern wall. Not fifty yards away”.