Boromirs way?

[The Saucepan Man]

"...long have I wandered by roads forgotten, seeking the house of Elrond, of which many had heard, but few knew where it lay."

In the firm belief that it should have taken Boromir little over 30 days to reach Rivendell if he knew the way, I had settled on this as the only explanation to this conundrum. Fair enough, it took him much longer because he didn't know exactly where it was. Seems possible that he spent a lot of time locating it. Except for one thing ...

... it is quite clear from Flight to the Ford that the Great East Road leads right up to the Ford of Bruinen. And what's on the other side of the Ford? A stony path that presumably leads right up to Rivendell. And even if it doesn't, it surely wouldn't take some 60 to 70 days for Boromir to find it once he reached the Ford. And wouldn't there have been some helpful tra-la-la-lallying Elves around to show him the way?

What was Boromir doing for all that time? I'm beginning to see doug*platypus' timeline as the more credible one.