It doesnt matter what type of camera you get they all output the same signals,usualy,either pal or ntsc so your real problem is to get the lcd to display the pal or ntsc coded picture.
You can get little lcd telly's which will do that,I dont know about lahore,but they are quite expensive,or you can do some clever retiming or the tv signal so you can display it on the lcd.The problem is that the lcd is a a different format to the tv signal which is either interlaced in pal or whatever weirdness ntsc gets upto to ensure that the colours are always wrong.I was always told the ntsc means never twice the same colour.