Expanding on my previous post, I believe in the spirit of this project it should be steam power only. Batteries were around as early as the 1800s but not in the form i'd be using. Anyways, for the boiler being built, I found a good generator. 

Here's the specs:

Interesting choice to focus on steam power for your project! It's great to see a mix of historical inspiration and modern innovation coming together. Can't wait to see how the generator fits into the boiler design. Keep up the good work!

You can just do things. In this spirit, I am attempting to chronicle building a steam powered Ethereum node, API and website.