AGV.....please read (sorry so long)
I just read your post about the catholic church I was in a similar situation. I havent attended church since I was a child, and FI only attends church about once or twice a year. FI asked if we could get married at this church located in amityville. His family has been going there for years even though he officially is not registered there. When we went to talk to them they said we were not part of the parish and we had to attend our own community's catholic church in lindenhurst. Went to the lindenhurst chuch, told them we werent registered with them, but that we wanted to get married in amityville. The priest was very nice. He wrote us a letter saying his church gives us permission to get married in amityville and that he is aware that we are not registered with his church. We went back to the Amityville church,gave them the letter and they said ok. All we have to prove is our batism and communion papers which need to be dated no earlier than 6 months before the wedding date. For that, all you have to do is call your church and they will send you a dated copy in the mail. Then you have to get the letter from your 'community' church. Just thought this might help you in your case. If you have any questions let me know