It's an allusion to the cost of buying tools to perform the job. The welder, tube bender, etc. are not free.
Yes, I understand how ludicrous it would be to go out and buy all these things to build a single item. That's why it's a joke.
It's not though. I was just talking to my Junior Officers about this today. They keep saying they want to do stuff with cars but don't "know how". I said "you do by learning" - the same way they got qualified as Infantry Officers; and there are a lot more people who work on cars than have ever held their qualifications. Cars are easy by comparison. I told them to expect to f*ck up a lot, to plan for it, and prepare themselves for the overwhelming sense of satisfaction and accomplishment when they do get it right. They know the door is open if they ever want to come over to my garage.
It is an investment in self.
I've looked through your build thread and you definitely stick to that. I love the car.
Thanks, just farting around.