>>1933115>>1933116you will also need to get an Instrument Rating (IRA) and a Commercial Certificate; Instrument Training requires 50 hours of cross-country PIC (remember at $150 an hour) and 40 hours under the hood, another written exam, a lot of theory and navigation practice, and another checkride.
You cannot take a Commercial Checkride without 250 hours total time and a certain amount of time in a complex/technologically advanced aircraft, a written exam, and a checkride.
Most people will get their Instructor's Certificate (CFI) because it's the surest way to make money and build time after their commercial license. You can also do a multi-engine add-on to fly something besides single engined landplanes.
Crop Dusting requires an agricultural applicator's certificate, which is specialized training and additional expense. Charter (and air taxi, mail, night cargo, etc) are usually under Part 135 regulations, and no 135 company is going to hire you without about 500 hours, significant cross country, night, instrument, and multi time
