[DEESNUTS]

I've read all the flor pan replacment posts, and they have been helpful. I have to tackle these before anything else on the car gets done.
I dont really want to do these myself as it will involve LH/RH full length pans, new seat brackets, and under rear seat pans.
?1. For those who did not do these themselves, what would a reasonable amount be to weld in each pan.
?2. One restoration shop quoted 500.00 perside.
i asked if it would be cheaper if i had already pulled tranny and grinded all seams and tunnel areas. What would be the best "state" of dissassembly to take the car to the shop to weld in these pans to make it cheaper and easier for them to to do. at this point the car in gutted inside except for dash and motor and tranny are still in so car is drivable.
thanks