Okay, let’s tackle this. So Luis has skills in interior design, furnishings, and custom furniture, which are in demand. However, his experience is limited to sales, which might not be directly translating to high design rates. Location is Miami, which is a competitive market for interior designers. Average rates for interior designers in the US can range from $50 to $150 per hour, depending on experience and location. Since Luis has limited experience and is new to the design field, I'll estimate a lower rate, around $75 per hour, which is more in line with entry-level design positions or freelance work.