Okay, let’s tackle this. So David Thurston has 49 years of experience in various fields, which is extremely rare and valuable. He’s self-employed, which means he’s likely to be more motivated to charge higher rates. His skills in interior design, cabinetry, and construction management are in demand, especially in the residential sector. Location is Tustin, California, which is a high-cost area. Considering his extensive experience, self-employment, and skills, I’d estimate his hourly rate to be around $200, which is on the higher end of the scale for a self-employed professional in this field.