The 2010 kits fully repair the center vent (#02) pod, if the housing is intact.

The dual-chamber pods have 2 diaphragms, and the 2010 kit will repair/replace ONE diaphragm only, the outer one. In my experience, almost all of the dual-chamber pod failures had this outer diaphragm failed, so the 2010 kits would fix those pods. However, some people have found both diaphragms failed, in which case the entire pod (or, complete internals) need replacement.

Internal components should be interchangeable if the pod size/diameters are identical. I believe all the dual-diaphragm pods are the same size, at least on the 124. Remember the rectangular/oval footwell pod almost never fails, and is accessible without pulling the dash, so you can skip that and maybe source a good used one in case it ever fails in the future. I've never seen, or even heard of, a late footwell pod failing.