Not pretending to be an expert in either system's internals, but I feel like svn would be a much better fit than git for this.

I find svn to be wonderful. There seems to be a real phobia against it which I've never understood and it's such a shame.

Especially when one of the biggest arguments "against" it is that "it's centralised" (when in fact using it in a decentralised manner is trivial), and ironically most people these days just use git as an interface to github (rather than the other way round), effectively using it in centralised manner.