You can separate Ethanol from Gas yourself. I believe you take a glass container, fill 3/4 with gas and the rest with water. Shake it and let it sit overnight, the water will trap the ethanol and become cloudy. The gas should be on the top or bottom. There are YouTube videos all over the place on how to do this.

I also doubt the ethanol is the cause of your rotting fuel lines. I believe they might have been on their way out or getting bad. They do sell newer fuel lines that will resist ethanol. I run my 1992 JD 318 on just plain jane 87. I have two blowers (echo), trimmer (toro), I just use 87 with the 10% ethanol.