If you've already driven it 40 miles without it falling apart, I don't see why it wouldn't male the trip. My first 300SD looked worse than that when I bought it and the PO had been driving it for several months. It was hit in the same area and pushed in so far that the rear seat was 4" less in width that it should be.
Worst case, you'll have to have it towed if it breaks down

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1971 R600 Mack toterhome (SuperDawg)
99 NU-WA Snowbird 34+2 SE 102 5er
If it's not diesel, it's not in my stable!
53 F100 617.951/auto
95 Dodge 3500 Cummins/5 speed service truck