i am senior php and android developer
me and my team of developers can make this project quickly
for php section (server side, admin panel, web services, front pages) it will be made in yii framework which is really fast
for the android side it will be coded natively (no offline web apps converted into apk, phonegap nonesense)
the project will be handled with 2 php develpers, 2 android developers,1 ui developer
we made the same project before with more fancy features such as wifi printing,
qr code scanning,nfc tags scanning,location based notifications, push notifications
,bar code searching,gps tracking and more
if you are interested please contact me on s/k/y/p/e miofuturemio