Riding to Spain on a track bike. Yay or Nay?

Me and a friend did a French tour last year. Things we learnt that might help (apologies if this sounds patronising):

Buy small panniers which will force you to take very little. We took stuff like, spare tyres, chains and nonsense like that. It all went completely unused.

Don’t ride in cycling shoes. The performance benefits are not worth the heat and discomfort.

Don't bother taking a tent. Stay in cheap hotels. You've just done 180K and are uber knackered. Beer is calling, the last thing you want to do is find a wooded area to pitch a tent. We used the tent twice in ten days and that was too much.

At least one of the group should have a GPS device. Maps are just going to piss you off.

Factor in some spare days. We had torrential rain on a couple of days and our final rest day on an Arcanon beach was dreamy.

This was our route (the big dent was to catch the TDF) :
http://2.bp.blogspot.com/_2hQdTJivWs0/SmhSu2LcZTI/AAAAAAAAAEU/cce4jsNlFlM/s1600-h/france1.jpg

That's 5 bits of good advice, i say.