The schematic has just been entered into EAGLE!
That circuit is really easy and quick to route. Here's the 2cm×6cm result with wide margins for newbies :
I'll try to make 10 or 20 but the size does not let it fit in 5cm or 10cm square boards. I'll have to find a trick. Parts can be densely packed but that would not keep its beginner-fdriendliness.