@Davideus it would be difficult to fit the current design inside the hopper body, the inductors required for the power conversion would just barely fit, but perhaps if we rework the design in a future revision it is possible with some planning.
Most of the design decisions in the current release were made to allow for a low retail price and quick time to market.
@MoltenTiger we have had a lot of issues with fraudulent orders in the past, so our shopping cart complains about the slightest address mismatch, especially for non-domestic orders. If you send us a ticket, someone should be back with you later today that can resolve the payment issues.
We are supplying a 120/240V to 12V 10A wall adapter and we currently have US, EU and UK plugs available so you should be able to get by with a simple adapter.
The barrel jack is 2.10mm ID, 5.50mm OD. Center pin positive.