Not sure about the sale price, but the Mini seems like a perfect fit considering your wants/needs. There are some cheaper options that still allow for tinkering but they may not have the same reliability as the Prusa. So unless budget is a huge concern and you really really like tinkering, I'd stick with the Prusa.
Personally, I would add the filament sensor and build sheets. My philosophy is that it's better to have them and not need them, than need them and not have them. Especially when shipping takes a while.
I feel obligated to comment based on my name alone. I created this username back in the golden era of Chuck Norris facts.