How's the "belly button" area look? Just watch it close. Maybe some sugar water to pep him up. Do the legs look well formed?
If he is dry, and the yoke is gone/absorbed you could move, I think.
HOMEMADE ELECTROLYTE SOLUTION courtesy of The Chicken Chick
1/2 teaspoon salt substitute*
1 teaspoon baking soda
1 teaspoon table salt
1 tablespoon sugar
1 gallon water
*Salt substitute is readily available in most stores in the spice aisle near the salt, but if you do not have it, don't worry, the solution will still have most of the benefits intended to combat heat stress.
This recipe could be useful for your little one. People also use corn syrup and water, or just sugar water like I said up top...
Also you may want to read a little bit about egg yolk peritonitis just in case there's any sort of infection in that bellybutton yolk area.
A teddy bears a great idea or real feather feather dusters are nice as a faux mama.