Money and gold have same codes,
If you are able to change the amount of money, then you should be able to change the amount of gold as well.
For material parts is this code,
2;327691;26::9 where first number is the amount of parts you have,
I'm scraping the parts and I'm leaving only 2 from each part, later on loading screen I'm changing that from 2 to 200.
When the game will load your garage will be full and you need to install the parts.
Then, open the GG and search for how many parts you can hold,
(when you enter in garage, switch to parts and you'll see below the parts are numbers, second number is your amount allowed)
Change that amount to 10000