75 Dodge Dart Sport Bumper Shocks?

75 Dodge Dart Sport - My resto has hit a snag. After removing the front bumper, I noticed that not only is the bumper bent, but so is the bumper filler unit. Then tonight, my wife noticed that the bumper shocks are not aligned - left, 2 inches exposed; right, 3/4 inch exposed. Both are rusted shut.

Question - I've noticed a number of posts where folks have removed the bumper shocks and installed other mounting plates. How would I go about doing this? Is there a source for these other mounts?

I'll get the bumper straightened, and I'll do a lot of praying for a miracle on the bumper filler unit.

Thanks all,

Jim
Jacksonville, FL