I've just completed Bk 1 of a ten part series. It's only 40K words, but by the time the series is completed I will write 400K. Each book has a corresponding screenplay. I have already completed seven. The screenplays also serve as outlines for each book and each one is one hour (approximately 50 pages).
Yes, it's an ambitious project but I'm well on my way. Plus it's based on a true story, that happened to me, so I know how it will end.
I am ready to start submitting BK 1 to agents but I've been warned not to say anything about the series. Any advice will be greatly appreciated.