I am in better than average shape, and have done two 500 miles self-supported bike tours. I haven't ridden in a while, but I have done many high mile days. But I have never sandwiched a day of work in between two long rides. My ride would be relatively flat, with some rolling hills in between. The traffic might be a bit hectic at times as well.

And man, sorry to hear about your bike accident. Hope all ends well.