Can /n/ help me out with my pet project?

I'm trying to design a modern turboprop flying boat transport that seats 80 passengers in a 5-abreast layout. It would be powered by two PW150's in an overhead push-pull pod similar to pic related, but with a V-tail to keep clear of the propwash, and retractable wing floats. The wings will be unswept with a front taper.

On my to-do list is to decide what de-icing, radar and hydraulic systems to use, but one problem I haven't been able to work out is how baggage would be loaded on to the plane if the cargo hold sits below the waterline.