Hello, I am new to the forum and I fell in love with all the 1911s in the pic thread. I have collected a few and a friend is trying to sell this to me. He "says" its custom from STI. Its a double stack, stainless, textured frame... Holds 15 x .45 and has the word "Custom" on one side of the slide and the word "thoroughbred" on the other. I was hoping someone could tell me if its valuable? I have seen STI from $565 all the way to $3500.