I'd take it to somebody and TRY to get it straightened before giving up, but there's multiple things amiss with that fork and it might be too hard to correct them all.
It's odd that whoever built it used a cheap(er) seamed BB shell but didn't scrimp on any of the other frame bits AFAI can see, and the construction looks clean and careful...indicating either a good production facility or skilled hand builder.
Aside from the above mentioned KHS frames that used Campy ends the only Asian production frames I can only think of are maybe Panasonic and possibly some of those "Ital-Japanese hybrid" one-offs from Nishiki and Centurion.
I don't think your serial numbers go with any of those brands, but...this is when T-Mar would really be a huge help!