Yes, we think so!

If your manuscript is finished, edited and formatted, you can use our Upload writing mode to upload your book to Leanpub (in PDF, EPUB, or MOBI format) and sell it on our bookstore and get 80% royalties on every sale.

Here is a walkthrough of the process, if you're interested:

http://help.leanpub.com/en/articles/2932466-getting-started-using-the-upload-writing-mode

If you're interested in some of the ways Leanpub is different from other self-publishing ebook platforms, we hope you'll find this article useful: Tips for Self-Publishing and Selling Books Using Leanpub.