I keep up with industry trends and right now you can find custom ebook covers for $ 5. (bookcovers.us)
Recently I had a couple custom ebook formatting and conversion tools built. (diybookformats.com)
Custom ebook covers take from 4 to 5 days typically from start to finish, but if there are a lot of changes and additional reviews, it can take a few more days. (elegantbookdesign.com)