I am a very infrequent visitor to London and could do with some advice please.
We are travelling into Kings Cross, then on to the outskirts of Hackney (Victoria Park). I am a new wheelchair user and very nervous of travelling on public transport, so I am thinking of just getting a cab. I know it will be expensive, but I think worth it for my piece of mind 
1/ Is there a taxi rank outside Kings Cross where you can just turn up and get in?
2/The journey is around 5 miles, will I be told the price before we set off or do I just watch the meter go round?
3/ Are the black cabs wheelchair accessible? Not a problem (I think) as my chair does fold.
Cheers 