Okay, let’s tackle this. So John Maidlow has 48 years of experience as an interior designer, which is extremely high. His education from Woodbury University is also a strong factor. Skills like interior design, sales, and project management are in demand. Location is Santa Fe Springs, California, which is a moderately priced area. Considering his level of experience and education, I would estimate his hourly rate to be around $200, which is slightly below the national average for interior designers. However, his extensive experience and strong educational background justify this rate.