Yeah, we hired a highly skilled technician with lots of construction experience for that.

We even embedded all the necessary diagrams directly into his brain (specifically, the left frontal lobe, because they're in SVG and you have to do all sorts of perverted XML trickery to get anything logical to stick to the right side of the brain) to ensure that they could not be lost or damaged.

Then we sent him to your planet to take some preliminary measurements and never heard from him again.

I considered trying to find him and get him a scammer tag, but that sounds like work and you're all doomed anyway.