I'd like a link to the SDK and MACL too (so I can read the scripts).
But for now...
You really need SDK badly? Go
here
Click on the tab that says Scripts and download Seph's Test Bed V.4
You're going to have to copy and paste the RSC Hidden Files from the folder of the project after you download it, and go inside and copy the scripts under the "Required Scripts" section. This reads the script from an external file, so the RSC Hidden Files are the actual SDK/MACL themselves, written to their own respective files. I'm sure you'll be able to figure out the rest.
In the SDK script, you can change the array to use the SDK parts you need at free will.