Weld the sills, fllors, fix the subframe and rattle can it.
You can come back to do a proper job when you have more time??
i wish i had the time to do that but cant see me touching it for a while. Got a vw camper just finished from resto, got my clubman next then my pickup, then a freshen up of my van then i got a mini rose for my daughter then ................................ the mk2