My plans keep being tweaked because I will be walking the first few days with my brother and sister-in-law who live in Madrid and have limited time. The latest possible plan is to meet in Pamplona on the 6th, take the afternoon bus to Roncesvalles, overnight and start trekking on the 7th. I think you will probably have passed through by then - but who knows - we may meet up somewhere. What distances are you hoping to do per day and how are you training at this stage? Are you going the whole way?