Rear-ended

[GHOM33]

I was recently rear-ended (see picture) in a 1985 RX-7 with about 110,000 miles. Obvious damage to left rear - some slight damage on left front. Car runs but I would expect at least some misalignment and possible displacement of the gas tank.
I am looking for advice on whether to fold or to repair. Any insights would be useful.

GHOM33