I have actually done it before using DVD Maestro. It really just involves encoding the video for the overlapping crawls correctly.

However, I'm really most concerned about getting a good enough LD rip of the EP IV crawl. One that would closely match the quality of the GOUT, and would have the correct framing.

You have a lot more experience working the scripts, etc, to enhance the video. I could easily encode the final DVD, given help with the source material.

I've got an old version of ANH I made about two years ago, which I could upload as a proof of concept.