All the things are hard to find brother.
but out of these...the front bumper is the easiest to find...u will NOT find a good bonut and fendors out of hatch in pakistan that easily.
the lights arents that different and 4drs lights can be used.
BUT if u find a nose cut out of hatch...u dont need anything else then 
but lets talk about saving money...even if u get ure hands on fendors and bonut along with the bumper...u will stilll be needing to paint them...and a little bit of denting...but why not use your stock fendors? stock hoods? get the denting done to match the hatch bumper like i did? u will save money by not buying an extra hood for 5-6k and then fendors for 3-4k 
cuz paint aur denting ka khurcha will be the same, just get it done from a good denter...side wali arc hi redo kerni hoti hai, i bit wider than 4door to match the arc of the bumper.
i hope i answered your question.
get it done from a good denter who has done the conversion before and who really knows what to do.