Excellent information shared on this topic.. (Y)
@nomi700
Write all the information from this thread, What I'll do is send a guide from Karachi to meet you in Bahawalpur... need exact time of your arrival in BWLP...
I will confirm the Guide's departure on 29th Jan... till now his plan is 50~50. 
You have to pick him before you enter Bwlp city, and drop him in LHR. 