Thanks for posting the photos. Mr.P looked at them and says it still depends on what your goal is -- are you hoping to use the old hardware or do you have new?
If you have new stuff, then it is best to fill in all the voids with a combination of a wood plug for the biggest part that is carefully fitted and epoxied (two part) into place and use the wood particle/resin material to fill it out. In effect, you'll have returned the door to a solid state. Then, after the proper curing time, you cut the new holes for the new hardware. One of the things he wondered about (in terms of new tools) would be if you had the bit that cuts the proper-sized plug from another piece of door wood. Usually, I think he said that's a 2 1/8, but it depends on what you need. Mr.P has left the building just now, so I can't ask.
He said if you possibly can, you should get a new piece of wood for the jamb. Some local shop likely "owns" the knives for cutting the exact shape. Usually you can figure out who did the original work and they'll still have the knife on file. If you can't do that, then the same deal is true as you'd need to do with the door -- if you are getting new hardware, you need to build it back up with the resin stuff. If you are able to re-use the old hardware, he says that you could shim it into place on both the door and jamb* and then repair the damage around it with the wood/resin stuff. He also said that as far as he knows, the Bondo won't take your finish wood stain color as well as the wood particles in resin.
*you can use wood splinters, washers (if it's too deep) and regular shims to set it in place. I'm pretty sure he said that the screw holes need to be filled & cured first.
Is this making sense? <rolling eyes>
Here's an article that describes what (I think) Mr.P was trying to explain how to do: