Can you order a 15-pass with rear-seat delete?

From my understanding, both the low-roof 12 and 15-pass vans are the same length @ 148". We require significant storage space in the rear of the van, more than what comes in either the 12 or 15-pass configurations. My question then is, can we order 15-pass vans with the last row deleted. Better yet, ordering a 12 passenger in the 15 passenger configuration, so the last row would have the four seats?

What we are currently doing is ordering the 15-pass and removing the rear seats ourselves, which creates an 11-pass van with a wasted $940 seat.

Thank you and appreciate the help.