Writing Repositories: Git? SVN?

Apart from the fact that my writing process is complicated, the tech part of my writing process is also complicated.
One of my working goals was to be able to use source code management, so I write in plain text files. I have eight years of subversion repositories for my creative writing, and that was part of my goal: I don’t lose anything.
But: Given that I’m leaving the server where I’ve got subversion hosting and can therefore move to anything I want — where to go, what to do?
Also, I think I want to switch to git.
My history with these things:

1. A novel is a directory, where the chapter files are named xxx-chap-nn.txt, other necessary files (e.g., a template file with things like author info and pseudonym) are in that same directory, and there’s a support directory with other files (like research notes)
2. A short story is a single file in a directory of shorts. Until now, all my shorts were in the same repository (because that worked well with Subversion), but I think that’s the wrong answer.
3. When I submit a piece, I create a subversion tag for that submission. So, instantly, I can look at a piece and see what I submitted for a given editor and how it has (or has not) changed since then.

How I get it from text files into the final version: I write in Markdown, render the Markdown into HTML, massage into XML, use XSL-FO with XSLT stylesheets to generate a PDF and RTF. It’s a fidgety process prone to breakage, and I’d actually like to just go straight to RTF/EPUB from HTML.
Dropbox gives me the freedom of a directory structure that iCloud sharing does not, so I could still keep my existing novel structure in Dropbox. That would make it possible to still use Subversion, but I’m not sure how well it’d work with git.
Other people have wondered why I have such a fiddly system. Because some editors still prefer Courier. Some want anything but Courier. (Personally, I’ve grown to like Courier, hate Times New Roman, and generally use Georgia as my “most compatible with everyone” font of choice.) Sometimes you want to print 1-1/2 lines for editing to save gobs of paper. Maybe you want to print a reading copy for someone.
With my old system, I can just use a different XSLT stylesheet. But I could just use something like (or exactly like) PhantomJS to inject a CSS stylesheet and document header information — et voila, HTML with stuff I don’t actually keep in my writing documents.
With MacOS X, I can convert from HTML to RTF easy peasy, so I don’t need the old messiness:
textutil -convert rtf novel-chap-01.html novel-chap-02.html novel-chap-03.html
So the question I have: Git or SVN for this? And why? And where to host (given that I don’t want to share my repositories with anyone)?
Here’s what I do care about and don’t care about:

1. I need a fair number of private repositories. 100-ish.
2. Don’t need other “developers” (aka writers).
3. Space is not a concern. Books are small. Typical hardcover is ~1MB of text.
4. SSL would be nice.
5. Don’t need issue management or Trac or yada yada.

Looks like CloudForge is the best per this page, but that focuses on SVN hosting (though CloudForge does both). Let’s put it this way: GitHub is too expensive for the number of private repositories I want to have, so it’s a non-starter.
Edited to add: I specifically want offsite repos.

• computers
• programming
• writing

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