Need some advice from the body guys

[gxc]

This is our current cab on our 1972 chevy c10 however, we have all of the necessary metal to replace the cab corners, rocker panels, supports, etc but we don't have the metal to replace the rust issues on the firewall and the cowl. We have an opportunity to purchase a cab that has all of the metal work done (rocker panels, cab corners, etc) and has a good cowl and firewall. Is it worth it to put all the metal we have into our current cab and still have these issues or just replace the entire cab with the other one? I'm going to post the pictures of the other cab we could buy in the next post.