I think it will be fine if WinToHDD can use driverpacks.net 7z packets and of course folders with unpacked drivers (.cab; .dll; .inf files).
Another good option is XPRESS / LZX / XPRESS HUFFMAN Wimboot compression support for Windows 8+.
Another good option is XPRESS / LZX / XPRESS HUFFMAN Wimboot compression support for Windows 8+.