Oh no, not another one! I’m afraid so. A 4500 class this time. Hopefully, it’ll be the last steam engine I tackle, and I have to say I am approaching this build with all the anticipation of root canal treatment. I want to keep this one simple. We are aiming for a mid-1930s loco, we’ve settled on compensation over springing (the kit is designed for it, apparently), and some electronics will be involved later. Bearing in mind the pratfalls of my last prairie, I hope this one will be the benefit of bitter experience. Right, where’s me soldering stick and piercing saw gone? Oh, I ought to add I don’t anticipate a blow-by-blow account of this one. You’ve seen me make all the mistakes before!