Hi Phill,
Just thought I would reply so you don’t feel you have been ignored
Welcome to the wonderful world of splinters burns broken finger nails cuts and bruises and great satisfaction.
I think you are on the first steps of a life long journey, and it would help if you are given the right directions so you don’t head of backwards.
What part of the country are you in? There is bound to be a local club near you with old farts, sorry, hands only too willing to pass on their knowledge. If you can get to Sandown MEX there will be loads of clubs from all over the country.
If you have no experience of any machining you might consider joining the next trainee course run by SMEE. If you just want know how the things work, buying a construction book might help. Do you know what they are models of or whose plans were used?
chriStephens
PS the cognoscenti call them steam LOCOMOTIVES or LOCOs not steam trains, which are a loco and carriages or wagons..