Sample Application Help Course

Hello first ma to all proud test drivers !!!! I have one please and I will get a sample now because I wanted to ask if you could give me as many tips as possible zb in the form of a list which replacement I can build from a Mazda into a sample and fit all parts or only from a certain car tupp please for numerous answers and thank you already!!!!! If my questions are not quite intelligent then remember there are NO stupid questions ONLY stupid answers and I would like to do without them. Spelling mistakes are extra inside so that we also have all fun.