Can get over 7 feet and wide too

Here is a previous thread with pics that may help. IME with them they are like dickie said - BIG and TALL. Google Images has many different pics of them.

Dave

Here is a link that might be useful: San Marzano Redorta

Sounds like they are big plants. I assume they will need much more spacing than indeterminant beefstake type plants. I usually prune my beefstake tomatoes but don't do any pruning for the pastes.