Thanks guys, and sorry for not replying before, my traveling plan underwent a drastic change since all flights were canceled in almost all of Europe.
But after returning from a harrowing 3 day trip from Central Europe (this would make a legend of its own), I definitely don't want to inter rail the continent again in the next week. So, due to volcano eruption in Iceland, I cannot guarantee my visit to UK any more. If flights get canceled again, I certainly won't be traveling by a train, and I won't take the risk of getting stuck again, this time in UK.
I'll try to update the status on this thread, but as you probably know Scandinavian air traffic is hit quite hard by the ash cloud and could remain around here for several weeks! I try to get more information and the decision of my travel by tomorrow!
Sorry for this stuff, but bear in mind I have lived last three days at the edge, selecting right schedules, being extremely busy and worried, and including a 36 hour awake period (I can't sleep in moving vehicles). Since the eye response and focusing time seems to be more of order of seconds, it's probably better for me to go to bed.
Signing off