Lionel asks: Is the Mercian Models G1 Ruston kit suitable for a beginner?
This is a difficult question to answer. Everything depends on what you mean by "beginner".
If your construction skills are hardly up to a simple Lego model, then no, it's not.
However, if you've done a bit of modelling, then "probably".
Looking back at my notes on the two models I have built, they seemed to go together pretty well. No significant fettling was required, and thanks to using 7mm scale technology in the chassis, it's modelling rather than engineering.
It helps if you have some skills forming metal. Sharp corners are easy thanks to half-etched lines inside to put the bend in the right place. Curves are a lot tougher - where do they start and finish? How bent are they?