Realize this does not solve your problem, but for the writing and drafting part. I personally use Blot ( https://blot.im ). It's been really great, especially for actually getting content written. You just tie it to a dropbox or git repo and write markdown and it does the rest. You can self host or use the hosted service.

Can't recommend it enough. The developer is also super responsive on email which is great when figuring it out. Only thing to nitpick about is documentation could be a bit more clear. You can see the result here https://blog.jonasbengtson.se/