Scott, sorry to hear of your troubles. I hope this does not sound too pessimistic, but I have had many a used car warranty in the past - used to be able to get at trade price - all every single one of them specifically excluded wear and tear items. This exclusion is aimed at brakes, clutch, battery etc, but I am afraid that the warranty company may well claim that suspension bushes are also wear and tear?
All I am trying to say is that even if you do get your warranty reinstated, they may not cover it? If this were the case, might be better to haggle/argue for more of a discount/contribution from the garage you bought the car from.
Perhaps call the warranty company, and ask if it would be covered IF the car were in warranty period??
Hope you get this sorted,