I think it's been proven enough in this thread that the replacement for an MCDV, shouldn't be anything smaller than an MCDV, for multiple reasons. Ideally, the replacement would be bigger, faster, have some capacity to land a helo, maybe even a hangar (for uav's more likely). Is there any sense in looking at a Flight 2 KINGSTON? Slightly more hydrodynamic hull form, lengthened to 240-260 ft, but retaining Z drives and adding a bow thruster with a dynamic station keeping system? The extra length could be used for a pair of those AOPS rhibs on quick release davits (a la ARMIDALE, for ex), a landing pad (maybe a retractable hangar for UAV) and still have space for containerized cargo. I'm no engineer, but I understand the extra length could help increase speed potential as well. It seems to me it's either that or just buy a RIVER or ARAFURA full package, with no extensive changes for Canadianization. As close to "off the shelf" as you could make it.