Assume this is a BP/w setup in which case it isn't what I want. But appreciate the suggestion!
The point of "customisation" is exactly what I will avoid for various reasons. I also don't dive that much so even the $800 ballpark was just a finger in the air given I don't know how much these things are!
No. Transpac 2 doesn't have a backplate although it can be added easily. I am not exactly sure what you are avoiding in customization, but as time goes along, you will find yourself customizing your BCD (if you are getting one) to ensure you are properly equipped, and diving in comfort.
Does it help if I tell you my gear bag usually weighs less than 12kg? Fins, mask, booties, thermal guard, reg all in.