Insigna tourer 2.0 CDTI dipstick

[Jhon]

Hi , I have a bit of a problem was hoping somebody can help me , I purchased this car that that had the dipstick stuck and managed to force  it out making it longer in the proces ,finding a replacement is tricky now , I bought 2 from eBay both way shorter than the one on the vehicle does anyone know what the length should be ? The car is Insigna tourer 2009 cdti automatic, thanks in advance