I'm looking at picking up an Aria PE-Supra. Does anybody have a price tag on it?

And i've got a Boss Distortion pedal, hooked up to a crate amp. First of all, I can only play distortion. I can't get onto clean when I press onto the pedal. Also, I can't get clean on the amp at all. I'm not using a pedal and it always sounds distorted. What's a setting I can put the amp onto so that i don't get that distortion sound, just clean?