The binder you've chosen should be pretty good in terms of coverage and binding power, though personally, I'd recommend a half tank/crop top. These things get hot. They also have a tendency to awkwardly roll up if they get any lower than your natural waist. The stomach compression the longer ones provide can be nice, but for me it is not worth the suffering (or the stomach acne.)
GC2B binders are the most comfortable/breathable, but they're not really cut to fit guys with a larger cup size. At best, you'll get a lot of side boob hanging out, at worst, you'll spill out of the armholes entirely.
Underworks has better coverage and costs the same. I'd go with them to start out with if you have a larger chest. Les Love Boat has some good options as well, but they're pricier and aren't really much of an improvement in terms of binding power (though the fit may be better.) If you have a less common body type, there are even some places like Shapeshifters that'll make custom binders to your measurements, though again, you'll be paying more for that.
