The British Library EThOS service now has another dissertation on Galatians available. Without giving away his conclusion let me just mention that on my birthday I like to have my cake and eat it too ;-).
Kyuseok Han, Pauline Soteriology in Galatians with Special Reference to ΠΙΣΤΙΣ ΧΡΙΣΤΟΥ. PhD; University of Birmingham, 2006.
Due to some problems rendering Greek in the EThOS system this dissertation is actually listed twice so be sure to download dissertation 62627 as the other listing is void. Hopefully they will get this fixed.