Transmission swap.can I built up a auto trans out of a 05 into my 07 that was a manua
 

Hi I know the first suggestion will be sell my car and buy one with an automatic tranny....but the thing is that I got a 07 Mazda3 4door sedan with a manual tranny in great all around shape for really cheap but it needs a tranny and I found a 05 Mazda 3 hatchback I can get for parts and his motor and tranny are great and I can get it all most free so I'm asking can I just pull my transmission out and simply built up the automatic transmission out of the 05 Mazda 3? Or what will it take to make that work?