Your crash is very similar to how I crashed in Arrowsmith 08 (was even a R5>3), I was just lucky I fell into a ditch at slower speed, and didn't get any style points for a triple pyke.
You would be surprised how well they fix. Dad's R33 has had 4 big hits in the front left (3 by us, 1 by Glenny). We replaced the left front tower after our first hit, cause Glenny had a rushed job to fix it when he crashed, and it was no good after a second hit. The 3rd and 4th hits were fixed on a chassis aligner.