Um, the D2 High Res model package by Atrahasis and Pneumatic81 is part of the OP Enhancement Pack any version.. just Dl the OPE and run the installer.. just dump out of the Batch file.. then find the High Res Installer in the Installs directory of the folder you chose to install to.
That should take care of the Models.. it is the complete package IIRC.
As for the rest of the Mod.. I dunno.