rocker help

[jbake]

Ive been stripping my firebird in order to install the new floor pans. Well I knew the outer rockers need some small patches, but nothing major. Well after getting the previous owners repair job out of the way I found the inner rockers r rusted out worse than I thought. Has anyone here replaced both rockers? Inner and outer? The floor is mostly gone due to rust, just the seat braces and there is some cancer on them 2. What's best way to replace these and keep are straight? I was going to take doors off so I had more room to work putting the pans un but now I'm worried bout keeping car straight so doors r still on. Any help or ideas are always welcomed.