I am building a bowser northern locomotive kit and bashing it into the SP&S # 700 that resides in Portlands brooklyn roundhouse right now. The only problem is that the model comes with the wrong tender style. The tender looks similar to a vanderbuilt tender but the water tank is squished into an oval shape, I think. I think that it is a G1 tender, it has 6-wheel trucks, possibly 8 wheel truck. I havent been able to find the Tender for sale on its own, or sold with another locomotive. The SP&S was jointly owned by GN and NP, I have already searched GN models, so that would leave a possibilty in NP prototype, or possibly its own design. The locomotive is built by BLW in 1938. If you have any info let me know.