One thought is maybe add a big fat lower cross member between what's left of the rear frame rails. This would act as a bottom support for the rear skid plate, and maybe the bottom of the rear winch plate. A lower recovery point is better I think, and it would be direct to the frame, although I think the rear bumper of the tray might be strong enough. Another option might be on top of the frame right over the rear axle, and independent of the tray completely. Only problem with that, is that it doesn't offer much for off center recovery, and would probably require the winch, because it would be so far back from the rear most point.
View attachment 2450969