I recently acquired a part built Fowler showman's engine in 1 1/2" scale. It includes a silver soldered boiler which is complete except for soldering the fire box stays, inside and out. Which would it be best to do first, inside or out? Also, on each side of the fire box are five copper bushes to attach the horn plates, threaded into the inner and outer wrappers, and also wanting soldering. They are of copper, and drilled right through. I was considering making bronze ones with blind holes tapped 4B.A. Is this a reasonable idea please?
Thanks. Maurice