Congratulations on the new Bates! And kudos to your dad for finding a NEW one at a great price! I've ridden in a Caprilli Close Contact and found it had a slightly deeper seat than other CC's. Great for flat work. But then, the flap is slightly forward as well...great for jumping! Overall, I think they're a good choice for multiple uses (especially with the adjustable knee blocks) and multiple horses (Changeable gullet)!
Do you already have stirrup leathers for your new saddle? I remember the leather on the Bates' being very soft, so you may want to invest in some calfskin lined/wrapped leathers. Or if you have some well worn-in leathers that don't have stiff sides to mark up your saddle's flaps. Oh, and did your saddle come with the gullet kit? It should come with a Medium (black) gullet installed, but they don't always come with the other sizes. I know, more expenses!! =)