Here is the WSI file of PaulTheTall's Diablo II from the link above. Since I don't have Diablo II I can't test it properly, but it should work. You just have to set the correct Main EXE path (the wrapper was pointing for an internal installer, so I'm not sure if it's going to work). It also won't require a installer, since I don't know its name
You have to drag and drop the installer on the generated wrapper to run it. Keep me informed if it worked.