I thought about how much they like to cuddle I so started there when trying to plan how to set them up. I realized that a lot of the problem could be solved if I left them in their slings. The piece of fabric holding the slings in is too short to fit lengthways along our crib (the direction they were sleeping in on the wedge) but it is wide enough to go across the crib in the normal direction babies sleep. So a few safety pins underneath and first step was complete:
I left their slings the same distance apart as they were on the wedge and surprisingly, both boys fit with room to spare.
Now to recreate a tiny bit of a wedge we placed some wood under the head of the crib to give them just the slightest angle. As I said I don't think it's the angle they miss, but it did give me a little bit of comfort.
Lastly, blankets over their legs could remain because they are still "strapped in". I safely sausaged them in their blankets, tucked under their slings so there was no risk of them kicking them on top of their faces.
Peaceful snuggly babies. So far we have had three successful naps and two nights sleep! I think this may be working.
I do admit I am desperate to finish up with the slings so that we can return the whole lot of it to the hospital. So first to go will be the blankets (hopefully helped by the cooperation of hot weather any day now), next will go the slings, and finally the angle on the crib. I think once the boys get used to sleeping side by side within the boundaries of the narrow crib taking away the slings "should" be easy.
Phew. Another potential disaster diverted. Way to adapt boys! Now I have started to worry about how much longer they can co-bed...they are getting awfully big for that little crib but is that ever going to be a change for them. First step is to find their current crib's match...come on craigslist!