Building a mecha in the present world

A man was reincarnated to a different kind of earth, where the technology is in the 2000's. The man was a fan of the movie Pacific Rim so ever since he watched that movie he always wanted to make a Jaeger like those. But alas he died at the age of 80 and was never able to make his dream come true. But what will happen if he reincarnated and got a system that will assist him in making one? Read to find out ≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈ A/N: I'm new to making novels so if you don't like it, then you can leave. Though this novel is kind of like a practice for me to get better.