well first of all if u have just two dayz u cannot really visit hardcore haveli dist coz its a big area.... yes u can visit lasdana area and and sudhan gali where u can visit ganga choti.... jahan tak lassdana may camping ke baat ha i dont thik any1 will stop u... mayb they charge some royalty ........
jahn tak camping at ganga choti ke baat hai it is possible but i dont think ull get any water stream there so i wudnt recomend it (i havent been there so may be i am total wrong)
its best u stay in sudhan gali and make a day trip to ganga choti....
basically lasdana and ganga choti r not good/prefered/usually done camping spots....... i wud suggest u exclude forward kahuta and just restrict urself to mehmood gali........... in this limited time...
may 2 dafa forwad kahut gia hun aur haveli destrict ke spots nai muktay.....
baki route is shorter and more butiful from islamabad-muzafarabd-chikar-sudhangali-bagh-lasdana-mehmood gali...
alternately u can do what i did last time...
islamabd-rawalkot-hajira-abasspur-mehmoodgali-forward kahuta-mehmoodgali- lasdana-bagh-sudhan gali-chikar-muzafarabad-islamabad
and i hope u have a jeep sort of vehicle--- its not a car route .... take a high clearance vehicle with u ........