Whoa, no way. That entire floor pan needs replaced, there isn't enough left to consider a patch panel. The floor is part of the structural integrity of the car.
I'd keep looking if it were me. Just my 2 cents, by the way, welcome aboard!
Thanks man. What if I got him down to $1500? I know this guy and think I can really get him down. I also have a friend that will put the floor pan in for me for next to nothing.