Thanks schettj, I updated the first post with the link to the wiki.
I uploaded the broken nk.nbf to the ftp at:
ftp://up.ppcgeeks.com/Apache/ImCoKeMaN/broken3.5nk.zip
[The only difference really is the reg entry for ms2_usbfn.dll]
I'm currently building a rom using the kitchen with the 2 patched dll's provided by helmi. It looks like it's fixed the bluetooth issues (including VC?). It hasn't fixed the USB, but it might be nice to have a common ground so i've uploaded them as packages for the kitchen. The packages to add are in my subdirectory on the FTP:
wavedev.dll_helmi.zip (for the OEM folder replace wavedev.dll)
e658c544-26bf-45ac-a458-2044a5d1e698.zip (for the OS folder)
I tried a different RNDIS/USB serial switcher before without success and unfortunately this one still isn't USB syncing for me.
I still don't think i get the RAM address checking that Helmi does and i sure don't know how to patch the dll, but i'm very confident that if helmi can find the time to patch the ms2_usbfn.dll that this USB issues would be resolved. In the meantime i'm gonna continue trying whatever I can find though.