i am looking for a cheap fpv setup for my quad and i just need something which will work within 1k range. i hope some of you are into fpv and can suggest me some good systems.

Oh man if you were only in mumbai. At lamington road they sell small security cams that can do that range. i can give you some links for these cams for online buying from other sites if you want

i know about them, but then later on i cannot modify them for a better antenna. like others at HK or QK