25. And you shall know and understand that from the emergence of the word to restore and to rebuild Jerusalem until an anointed prince shall be seven weeks [49 years]; and in sixty-two weeks [434 years ] it will return and be built street and trench, but in troubled times. 26. And after the sixty-two weeks, an anointed one will be cut off, and he will be no more...

Dougg,
I said there is no reason for the 2 time frames according to the KJV translation. I didn't say I accept the KJV translation. Look at an accurate translation above. There is nothing awkward. A first messiah comes after 7 weeks. A second comes after 62 weeks.

The most straightforward reading is that the rebuilding begins at the end of 7 weeks, with "messiah prince" (probably Cyrus) being the impetus for such rebuilding.