I wasn't going to get into this.
The guy's frustrated. If you pay your money and expect to get a perfect, ready to tour, car then you will likely be frustrated. I was!
I've owned four replicas; built one, traded for one, bought two. The one I was most pleased with was the car I built. I knew where everything was because I put it there.
I doubt that any maker (don't know) test their cars for several hundred miles to see that everything is working as it should. There will always be things to do and you will have to do them or pay someone. Good luck with that. In the end it will come down to learning to work on your prized plastic Porsche or selling it, out of frustration. Most Speedsters get sold with 500-3,000 miles on the odometer because, I suspect, owners were not have a real expatiation of what they were getting into.
Regardless of who built the car It's still a kit. If you're not mechanically inclined you really need another hobby.
40 years ago only the government and General Dynamic's had computers. No internet. No email. You were pretty much on your own. Parts came from the local NAPA.
Free advice is readily available HERE from knowledgeable owners and builders. Lots of prepurchase time spent here would likely have been a great benefit to you. Everyone here will gladly help. We don't tolerate whiners.
Now that you are where you are with the car you only have two options:
1. Sell it now while you can get most of your money back.
2. Work through the issues and enjoy your car. Expect many more challenges.
Best of luck! Really
P.S. my Spyder had the reservoir mounted to the mastercylinder.