So, a few years back, I was involved in a collective effort to buy and digitize Transformers scripts. We managed to get more than 30 of them, including all of Season 1 and a close-to-finalized draft of The Transformers: The Movie. They were published for all to download, using the site Megaupload. That site was later busted for piracy, so Chris McFeely and I took some steps to make sure that they remain accessible. If you're interested, they are all available for download on Google Drive:
Hope you enjoy! If you have a lead on any more Transformers scripts, drop us a line. I'd love to get all 98 episodes up for perusal.