Yes, there are exceptions to every rule, but it isn't recommended.
55gallons- There are some seriously cool fish on Aquabid, but a crowntail betta is clearly readily available to you. If I were you, I'd just go to Petco or an LFS
and pick out my favorite crowntail, and avoid the shipping charges for Aquabid. That way you don't have to buy a "lot", and you get to choose exactly what you get. JMO.