Seems likely--but you have to further assume you get the JS.

Good news is, it's currently showing open (i.e., no one has listed for it). An online guy could list for it up until the gate agent assumes control (~1 hour prior); and I think online guys have walk-up priority until 15 (?) minutes prior. After that, FCFS (get there & get listed ASAP). (DISCLAIMER: as an online guy, I'm familiar with the listing priorites; not so much for offline stuff.)