I did not buy any manuals. All my information came from library books and internet. I did look at a lot of different models, they all work the same.
Material wise, I've salvaged free flyback transformers from old TV sets. Flyback transformers are less powerful than neon sign transformer, but still work. Most designs on the internet use neon sign transformer.
As for the rest parts, you need a magnet wire, PVC pipe, beer bottles for the capacitor, and a bit of ingenuity to put it all together. My cost was less than $15 bucks.
If you want to buy your own TC, how much fun would that be?
There is hundreds of different websites with TC made by people. Google, and print stuff out. I hope what I told you is for educational purposes. You can really injure yourself if you don't know what you are doing.
Alot of TC designers spend a lot of time calculating everything out. I've found that without any calculations, just ball park, brute force construction will still give pretty spectacular results.