I too bought another 120 Steampunk almost immediately, as I loved the first one so much. I got gunmetal/silver as that too will be the mod for the Engine that arrived with the tesla (I didn't realize I was buying a kit, LOL) and I'm glad it's stupid/simple/easy to set up as it will be my first build from scratch! I hope.
I can't say I've enjoyed a mod more than this one, and I haven't as exhaustively ah, tested and then kept, various other mods, I've only had about 5 batteries but this one blows everything out of the water, at least for me. Finish holding up well, have to handle carefully due to battery fixture, but that will be fixed (hopefully) with a wrap. It won't be so pretty, but the main thing is, it will allow me to be a bit less... gingerly about the mod, with respect to the battery door.
Truly an awesome mod however. My zelos kit just arrived, I think I will be charging it up today to see how it performs in comparison

Wanted a backup small mod to carry around with me in my purse
But yes, I am singing Steampunk's praises in all directions
Anna