Complete floor replacement advice

Hey guys,

I am getting ready to do a full floor pan replacement along with subframe connectors in my 66 Valiant. I have a rust free donor pan, welder, rust ecapsulator and some decent mechanical capabilities. I figured i would ask you more knowledgable folks a few questions before i tear into this thing...

Where do you normally place jack stands and whatnot to keep the cars unibody from tweaking when this type of surgery is done. I am assuminging that by adding in the subframe connectors prior to removing the pan will help some?

When installing a complete pan where do you typically cut it to fit it in(across the middle, in half, ect)

Is there anything i should look out for?

Does anyone have any pictrues or whanot of this being done?

Thanks for the help!

-Jake