Who paid for the wedding in the end?

Who paid for the wedding in the end?

I missed a section (well a lot sections of this movie) but the section I'm interested in is, between were Jimmy (Bruce Willis) finds his father's valuable ($30K?) Baseball card with a bullet hole through the players head. (I missed a bit here) I returned to find they had cut to The Wedding in progress.

So with the card ruined, who paid for the wedding? - The stepfather of the bride? Hence the gun held at his back by Paul (Track Morgan), when the priest asks 'who is giving the bride away?' - to stop him (the stepfather) giving away the bride and allowing Jimmy to do it?

Also the last scene where Willis turns to give Tracy a cheesy grin, I think should have been a wider shot of Tracy showing the gun still pressing the gun into the stepfathers back, so jimmy can see what his partner is doing and therefore the reason the 'buddy' smile ending ???

Hope some of that made sense, I'm hopeless at explaining things in text!!

-B!LL!