The missing/damaged part is a radiator support? And you have been a year waiting on a backordered part. Is it a chassis support part?
If it were mine as Dave stated I would bring the damaged piece to a fabrication/machine shop and see if it can be made or repaired. Essentially you have lost a season and a half to this point on your, for the most part new rig.
Is this your insurance company or the guy with the pick up that pulled in front of you footing the bill? Or are you on the hook for your own repairs. If this is an insurance job I would be SCREAMING and I do mean SCREAMING at this point at the carrier that is responsible for getting it fixed. (A year out is well past time for catching more flies with honey or tacos
)
If it is your dime then I do not mean to be rude but it's on you for not trying to get a part fabricated.