Whoa, two of the areas you mentioned are extremely block by block (Church Hill 21st to 29th street) and Manchester/Hillside Court. I wouldn't recommend those areas for out-of-town people completely unfamiliar with the area. You might be ok safety wise, or you may end up being in a section where it's barely safe to be inside your house. Those are more advanced choices for people who already live nearby and can sus things out. Honestly, I would aim for a suburb further out - there's a reason the areas you're touring are more affordable, and it is safety reasons. Again, there will some blocks that will be ok in Church Hill or the Manchester area, but it can be hard to figure that out from afar.