Ok, i got my elky on the rack the other day to get the tranny out of it, it turns out that the whole floor is rusted out, minus the part that the tranny tucks up into...The frame and suspension is all still good but the floor pans are rusted all the way through...

WHAT DO I NEED TO DO?? As a noobie hotrodder, im really scratching my head...so any advice would be VERY much appreciated.