well the question of old ppl traveling is not an issue.. to arang kel even they can manage if chair lift is operational.. not otherwise.... hotels are there but u must get advanced booking as there is too musch rush in neelum valley these days....
baki travel time from Muree to kel will be abt 12 hrs so u must break that into 2.. have night stay in Keran.....
and what is taobat lake as i have never heard abt it...... taobat may night stay ka koi khas bandobast nai so its advised u make a day trip from kel to there and return bak to kel for stay.... baway jo sath hongay.....