I vote for a new(er) Schilke B3L. But first, a good REAL cornet. That Stomvi Brass Band looks sick. The main tuning slide trigger is what tickles my fancy.
In between now and then, practice your butt off, start a brass quintet or quartet and start gigging at weddings and other stately events to get introduced to true musicians' life instead of having the structure and certainty of academia.
Oh, has anyone mentioned to practice your butt off yet?