Read from beginning to end. This is exactly the type of project that allows people to realize their potential. Great work.
I do however have some questions, but I will begin with a bit of a preface:
I am looking to do the exact same type of integration, including the cameras (front by dash to record and rear by the bumper to use for parking assist). I have in mind doing a system that would integrate to the stock Bose system, via auxiliary cable. The mount should ideally be removable in order to update apps, songs, etc. the iPad should have a charging cable that would allow for easy removal of the unit for the hot Arizona days.
That said, I feel like you have achieved 99% of those points. I like the style and approach you took to it all and for that, I give mad props sir. Now come the questions:
1) in terms of fabrication, how much experience would it require to create a mount like yours, assuming one knows how to solder and has enough electrical experience to wire everything?
2) How stable is it when in the mount? More specifically, when Riding in a bumpy road, does it rattle or lose connection to either of the ports?
3) Understanding the project isn't finished, what do you estimate the total price of the project is, including mounts, fiberglass, etc?
Lastly, I want to reiterate how amazing of a project yours is and that I cannot simply wait until the finished version is posted. I would suggest some video footage along with steps by step pictures
Mad props,
-Exedy