Interesting but also very sad on the other hand

Even more important to keep his work alive I think! That said, I've scrutinised the things he did more closely and stumbled over his macintosh versions of his mods. As I understood, these include graphics with an higher resolution than the PC version. While checking several thread and hundreds of postings, I've found several attemps to rip off these parts (for example here
viewtopic.php?f=37&t=48738), recreate them from scratch (for example here
viewtopic.php?f=46&t=48769) or ports of them for ECWolf (for example here
viewtopic.php?f=42&t=51748). Something I couldn't find though was an texture update (with higher resolution) for WolfenDoom in special. Excuse my (perhaps stupid) question but is it that tricky to create, is no one interested in something like this or does it has any special reason? As far as I can tell, most resources are already available (even some rotating bosses). Perhaps I just missed the rub in it (I'm still a newbie in doom modding) but hasn't someone tried or is willing to give this series of missions some graphical update? Perhaps someone could give me a hand or some kind of introduction so that I can understand the problem or even better, try to start a project like this myself? (I tried some "hires" files like the ones of freelanzer but they don't work with Laz' files although they look fine with the original missions and spear of destiny hence this is no real option. Also using ECWolf instead of ZDoom is no option for me either as I want to play them on my RaspberryPi - there is no ECWolf port.)
Sorry again, if these are stupid questions - I'm still trying to work one's way into all this.
Greetings