I am contemplating of making my own 4x5 camera. Are there any plans available that I can take a look to see if this is within my capability? I saw many photos and partial plans but there was nothing that contained enough details so far. I would prefer something free but I understand something detailed must be paid for, so reference to a published book would be appreciated as well. Other than the size, I don't have any particular spec in mind. I'd like to see a few to see what's out there, what's possible, and see if I can actually do it.