I used the “to blogger format” mode of Google+ Exporter, created a blog, and imported the download. You can check out the results at https://c32767.blogspot.com/
Some comments: I have just over the 800 max limit, so I bought the $20 license. The export for < 1000 posts took a few minutes; the import to blogger took longer, I think — I walked away to get some coffee. The result requires tweaking, which is in progress, so if you scroll down through the blog you will see progressively rougher results. Some of the posts are not worth keeping — I estimate about a 30% deletion rate. The handling of photographs is not nearly as good as in G+. Note that this is the 1.5 version of G+ exporter, so the photo links may disappear w/ G+. I will try recreating the blog with the 1.6 version. Photo downloads should considerably lengthen the duration of the download and upload.
I want to repeat what Edward Morbius has been saying: the time to do this is now. There are learning curves all over the place, and hidden pitfalls and roadblocks abound.