Have seen the MH-92 pictures before those hardpoints are the weapons stations mounted to the box structure mounting the undercarriage , what i'm after is the external stores system mounted to the fuselage above the sponsons, the wing mounts are just above the sponson tank on the fuselage either side of the third last window(there is also a small round cover there the fuel plumbing would go thru to conect into main fuel manifold) with the support struts coming down from the mounts under the engines (small access panels under engine door hinges).
I envisage the wing would be about 5' long going accross the top of the sponson with the support stuts going up at about 45o to under the engines with the 870 lt tank having about an 18" gap to the sponson.
Sikorsky have alot of exeriance with external support systems as the Blackhawk runs at least 4 differant systems and the Seahawk 2 i know of.