Over the last two evenings I have been working on a GHQ pewter kit of a log loader. This is the first time I have built a kit from pewter. The castings in the kit are almost flash free. Only a little cleanup was needed. I put it together with medium CA glue. I left off the roof, which I will paint when I spray the loader. Leaving off the roof means, I can install the seat and figure after I spray the loader. I used a product called MR. Surfacer, to fill in small hair line cracks and a small mismatch line of the casting in the engine area of the loader. It's similar to putty but you can brush it on. This is the 1200 version, I believe there is a 600 version which is a bit thicker. While designed for styrene, it worked well on the pewter.
My son helped me on this model, for his effort I let him decide if we should model the loader with the arm up or down. He choose up. I will paint and install the wheels separately. I will let the filler dry overnight and then sand the model prior to paint.