Okay, let’s tackle this. So Richard Kost has a range of marketing skills, but his location in Cathedral City, California, is a key factor. The US average for marketing professionals with similar skills is around $50–$100 per hour. However, considering his proficiency in multiple languages, including Russian, which is a valuable skill in the marketing industry, I might bump it up to $75 per hour. Some marketing professionals with similar skills in the US might charge $100–$150 per hour, but that would be for more senior roles or with more extensive experience. Given Richard's skills and location, $75 seems like a reasonable estimate.