Alignment Issue 08 X5

[mdfud]

i recently purchased an 08 X5 4.8 w/ 5600 miles that was cpo'd by the dealer (schomp in denver). on the drive home to utah the steering wheel listed slightly to the left so i took it to the dealer here and had them check the alignment. the dealer in denver had not included all the options, i.e., active steering, sport suspension, etc. on the alignment and, as a result, it was out of alignment. the dealer here was able to align everything to specs with the exception of the right front camber (target is -0'20' and it measured 0'13'). dealer said i need to replace the upper control arm ($780) in order to align it. i had it checked by an independent alignment shop; they agreed it was slightly out and that the only way to align would be to replace the upper control arm. everyone who's looked at it can't see any damage from an accident (carfax checked clean when i purchased) but i have no idea which way to go. input greatly appreciated. TIA.