That low-C mandocello range is fun to have, especially as it's a different sound to an open tuned guitar. I have my 10 string cittern (made by my classical guitar luthier brother) in unison CGDAD at the moment, so it's in mandocello/Irish bouzouki range.
And these are my two mandolins
The bowlback I've had since I was a teenager, it sounds sweet but I struggle with the tiny and V shaped neck. The other is a Sears catalogue model made by Harmony in Chicago, which is cheaply made, but the endearing, funky kind of cheap!