My husband and I were engaged for over a year before I finally married him. Neither one of our families was supportive so, on a trip back from Nawlins, we decided to do the courthouse thing, since I worked there and knew all the judges. I asked him once if he felt cheated of the big show (I'm not a ceremonial sort of person, but he is) and he said no, he got what he wanted out of the deal.
Since you both love the outdoors and biking, I'd save the dress money and take a biking honeymoon sort of trip. It's the life after the ceremony that counts.
Knitting to keep my sanity. It's working... kinda...
OTN: Dr Watson's Cable Crew Neck
OTN: Writer's Cardigan