Kit SL7 – Lilla was the last narrow gauge kit produced under the Agenoria banner and remains available (2016) from EDM Models.
The kit is mostly etched with some cast brass and cast whitemetal details. Wheels gears and motor have to be supplied by the builder.
There is a detailed history of the loco on the Festipedia page here
This is a link to the instructions included in the kit sl7-revised-edm-instructions
These four photos are of a model of Lilla made to 14mm gauge by Brian Love for David Johns Rhyd layout
I get to play with Lilla occasionally too. In May 2016 we borrowed Lilla to cover a loco shortage at Beamish for the Great War Steam Fair and for a couple of weekends after that. During the steam fair Lilla took turns to work the freight trains whilst on the other weekends we gave footplate rides
I took these photos of Lilla at Beamish in May 2016 to help a modeller in Australia. I’ll put them here so they can help others. You will see a blue and yellow striped stick in many of the images. The stripes are 20mm wide so you can scale from the photos