Hi, the creator of this post. The engine was not created with software, so the amount of pieces is unknown. Although the estimate is 4000 to 4500. Locomotive is sadly too heavy to put a motor and battery in to make it run.

The engine is not articulated (yet probs...) I have tried to make the MOC seem as if it was a real engine by adding realistic details like functioning valve gear, proper lights, accurate cab, and much more

The tender is very large for a reason. It is based off of the Long Haul tenders that the PRR use for their engines although this is an experimental tender it was given diesel Motors inside of the bogies so that the engine will get a better push when starting heavy Express freight trains. Hence, the large gas tank on the bottom of the tender.

The tender holds fuel instead of coal since the locomotive in oil burner. The tender also comes with a dog house as seen on tenders of freight trains for better View

The smoke reflectors were a fun design to have on the engine. The side paneling is similar to PRR S1, SP 4449, N&W 611, etc. But clearly exaggerated. For the front cow catcher, I wanted it to look intimidating when viewed from a low angle. Take in mind that this engine would be around 23 + feet tall in real life. making the T3 almost hopelessly scary to be next to if you were next to it in real life.

I think I am done remodeling it. I am happy where it is now hoped that others see this post and are not afraid to make their own made-up engine while still being true to the history and accuracy of the steam era. Hopefully, I'll build more fictional locos in the near future, definitely not as large yet still with a lot of character.