Now Rudisha should get an experienced person to handle the business side - marketing him as a brand. In the last 4 years, Bolt has been making an average of $20m (Kshs. 1.7 Billion) every year. That should be the LOWEST target for Rudisha. All he needs is an experienced international marketing team that looks at him as a product/brand. Another independent team can look at him as an athlete.
You need the right people to make money off you image. Price money and appearance fee should account for only 10% - 20% of your total earnings. I should go into sports management and marketing and hire the right people!
Never count on making a good sale. Have the purchase price be so attractive that even a mediocre sale gives good returns.