Android Unity 3d Augmented Reality Application Building

I need an android build of of an augmented reality application. I have listed some sample scripts down below but you are more than welcome to write your own. . User needs to point camera on smartphone to look at a building and replace with a 3d buildng model i have already designed. Also is picture of building below needs to work with, keep in mind I have the 3d model made in max and fbx format . This is please only for unity professionals. Need also a basic small menu for navigation. I need to see proof of experience before we begin any talks thank you.