micro ATX vs ATX board not exactly true.
This micro ATX has decent power delivery, really good sound, all necessary connectors including M.2 slot, 4 RAM slots.
The only thing that "less" is the number of PCIe slots. So there is a slot for GPU and your Wi-Fi card. Do you think you are going to need something else ?
If you still prefer full size board, here is one
http://au.pcpartpicker.com/product/qjp323/asus-motherboard-h170pro
As I said, if you slash the RAM to original 8GB, you will be back to 1269AUD.
this is lower than what you started with while really much more powerful for gaming.
SSD is nice for windows boot and applications/games load time, but does not affect performance. So it's kinda "luxury" feature. And honestly, it's the first part to skip for now. In few months you can add it (may be even greater capacity).