You might think that you can do repairs with just a few simple tools. However, its a job that you really need to think hard about before tackling yourself. This is not a job for the average person.
About 45mins-1hr cause you have to wash your face, hair, conditioner your hair, body, maybe shave, and rinsing you know. Ha no no no no no not 45 mins. for guys like 5-8 mins and girls like 8-18 mins...