If it fits a half barrel keg (looks to be right), you can generally fit at least 2 cornies in it, but one for sure.
Commercial half barrel is 23 3/8" high, and 16 1/8" wide (unless it's a potbelly/round-sided version)
Ball-Lock cornies are 25" high and 8.5" across, whereas Pin-Locks (unless either has been converted from original configuration) are generally 23" tall, and 9" across.
So, if you use the squatter pin-lock, you're nearly certain to fit barring some obscene internals on the kegerator.
Considering how tall regular sanke couplers are, there is probably a lot of room to spare unless they used a low-profile... very uncommon.