A Fernco could be used.

Guessing that you would have about 5-7 seconds, but you might not have enough play in your pipes to do it all at once anyway. Go with the Fernco option.

First off, be sure you get a repair coupling, not a regular coupling.

A regular coupling has an internal stop ring that will only allow a pipe to be inserted 1/2 way, but the repair coupling has no internal stop ring.

To make your joint you begin by sliding the repair coupling on one pipe and slide it about 4" from the end of the pipe. You then clean both pipes to be joined, apply glue to both pipe ends and slide the coupling back over the joint.

If I go with the Fernco do I have to get the one with the full ban shield that compresses it or is it OK to go with the Fernco that only has hose clamps at each end?

Also are hub and no-hub fernco of different size?