Hey Spittet
I have done something similar, but I did create my database, I do not see any application where you will require all the J1939 possible SPN, but I could be wrong.
So my advise is use a MODULE for the database, it works better since the DTC is not always present.
The data base I did is for common stationary engines where you do not have a transmission J1939 enabled or additional modules like in a tractor.
But could give you an idea about how to do it
I hope it helps
Regards
if this works it means it does not let me upload pictures, I was attaching some screen shots