Hi Kyle772.
I've just had a quick look at your model, and first thing I notice is that there's alot of reversed faces, I quickly sorted these but it shows a few more problems.
One view is this, it has multiple faces overlapping:
There is also alot of faces inside the shell that don't need to be there, you need to look inside every part of the model to get rid of unwanted parts, otherwise it will either not print, or may fall apart when printed.
This is what I'm talking about, the face marked in red should not be there, or any reversed face inside a shell like that, and I think the yellow faces should either not be there, or must be reversed:
For reference, the view above is just inside here:
The model would IMO need some time spent on it to get it ready for printing, it's just a time consuming process removing unwanted faces/lines and making sure the faces are all facing the right way.
All I did to your model was reversed the faces that needed to be, other than the ones which overlap with others.
Hope this helps,
Tom.