The nice thing about the SH4 game, is that once it's on your computer, you can copy and move it, no problem. You should de-activate your mods before the move, and it's probably best to leave the current install, which you could leave for "Stock" play.
Make yourself a directory (folder) off of the root of whichever drive you're going to use. "Games" is a common choice. So you've got "C:\ Games \". Now make a folder that will hold the copy of the game. Since you're using TMO / RSRDC, you could name it that, such that you've got "C:\ Games \ TMORSRDC \" for a folder structure. If you can, it might be easier to open a 2nd Windows Explorer window.
What you want to do is open the Program Files Wolves of the Pacific folder, so that you see the Data folder, the Support folder, etc, and all of the ACT and DLL files. Press and hold the <Ctrl> key, and while holding it, press the <A> key. That should select all of the files and folders. Now press the <Ctrl> key and hold, and press the <C> key, which "copies" all of them. Navigate into your new TMORSRDC folder (or whatever you named it), and press the <Ctrl> key again, and while holding it, the <V> key, which will "paste" the files into that folder.
If you have to, re-do your MODS folder. To create yourself a desktop short-cut, right-click on a blank portion of the desktop, and then left-click on (or hover over) "New", and click on "Shortcut". Click on "Browse" and drill down to your new TMORSRDC folder. Select the SH4.exe file. If you don't have the file extensions visible, choose the first SH4. Click on OK. Then on "Next". Then you can name it what you want, like "SH4 TMO RSRDC" or whatever. If you want to, get MultiSH4, and use it to create a new Save folder for you, such as TMS or whatever. With this technique, the only thing to stop you from having a folder for each mod you want to run, is hard drive space. Just be sure to make separate Save folders for each one with MultiSH4, and you won't cross-contaminate yourself
- not that it's ever happened to me...
