I wasn't aware the G5 came in a 32GB flavour. Are you sure you don't mean a G5S?
Moto G 2GB RAM 32GB storage on Amazon.
Well, there you go.
Also, if you're ever adding an SDXC card you're going to need a UHS-I Class 3 like the SanDisk Extreme. I can tell you that the Kingston UHS-I Class 1 simply doesn't cut the mustard if directly saving photos to it from the camera app or using it as adopted storage where it acts like internal.
No need for a memory card with 32GB storage - my wife currently uses 6GB of storage for apps and data so she'll have heaps with 32GB.
Yeah - I did see you mention you wouldn't be needing one earlier so I posted more for reference for other people in case they were moved to get one and did need more space.