Great idea with the toilet paper roll. I can probably put it in an small egg carton as well. However my pip is a lot bigger than you had plus since its 2 days early I am afraid of intervention. Last time I did that, the chick took 2 days to lift its neck.I have hatched probably dozens of 'breach' eggs and almost all of them have hatched, but some do need intervention... I wait at least 24 hours after the pip and if no progress is made, I will then open up the pip a little bit and tap on the egg trying to encourage the chick to get a move on it... If after a few more hours of no progress then I slowly assist the hatch as long as the blood is out of the membrane... If the pip is large and you see it drying out, I fold up a paper towel with one corner not folded in and wet it with warm water, then set it next to the egg and lay the unfolded corner on the membrane a bit, the membrane will then wick water slowly out of the paper towel and get soft again without drowning the chick...
If you look at my picture of the 'breach' pipped egg a few post above, you will see that I cut about a 1/2" ring out of a toilet paper roll to use as a cradle for the egg, this allows me to position the pip top dead center so that no fluids left in the egg block the breached hole, can't say if it's necessary but it works for me...
How about putting under the broody, maybe she will help it out?