My lower left heater control lever has broken. As I shop for a replacement, I notice two types for sale. Most are colored plastic/acrylic with black rubber/plastic levers. The one I have to replace has a black lever and was so delicate it seems to be rotten (I imagine the other three are in similar condition). PelicanParts.com sells levers that appear to be 100% colored plastic/acrylic. Other than being OEM items (and more expensive), what is your opinion of their respective value? Can I expect the all acrylic lever to last any longer (approx 10 years)?