In the meantime, you may also want to try practising your strip & convert technique, just to get a feel for how easy/convenient you find it. Possibly it may turn out to be more complicated/tedious than you really want, especially if you end up doing it a lot.
You can use some of the free promotional books offered at the Sony and Kobo stores for test fodder, and use Kindle for Mac/PC or better yet,
Kindle Previewer to check how they'll look. ePub tends to lose formatting on the way to Mobi, which only allows for a much simpler display in general, but this shouldn't matter with most books.