This will happily take 26 AWG wire, we have used 22 AWG with no problems as well.
1. Main difference is exactly that, the HAT plugs directly on to the Pi. Price increase is due to the header required for this, as well as the additional mounting hardware.
2. Yes, this will fit the HighPi Case
The ModMyPi Paddle Breakout HAT enables you to bring the Raspberry Pi GPIO out from your Raspberry Pi to 'push wire' paddle terminal points in the form of a neat HAT! This kit requires absolutely no soldering, but will allow you to jump straight from the Pi to your project or breadboard without the use of a cobbler kit. All terminals are labelled on the PCB silkscreen, and have been re-ordered in a simple to use format.
The 'push wire' terminals can be utilised with solid core wire stripped to around 10mm of exposed copper, which can be purchased from ModMyPi here - Solid Core Prototyping Wire
The ModMyPi Paddle Breakout HAT Features:
The product is currently Out-of-Stock. Enter your email address below and we will notify you as soon as the product is available.