So,

You know how it is when you're given something, right?

I was given an old blue box AC4400. the fuel tank is missing on one side of the frame. Since Athearn parts are so hard to find, I thought I would try modifying a Kato fuel tank to fit. Sure, I could make the part out of styrene from scratch, but I am trying to make my effort a little less difficult.

Thanks for any suggestions or experiences you can share.