Be interested to hear others views, but my take is that 800 words is the ideal number of words for a blog, some of my posts run a bit longer/shorter, but 800 feels about right. If you start getting too long, just split them up for multiple posts and turn it into a blog series.
Regardless of the length, bolding headers, bullets and lists is a nice way for readers to quickly consume information if they are reading quick and skimming through the post. Be sure to keep us posted on your best practices/lessons learned once you start up the project! Lots of great information here to get started.