1- pioneer 5250sd or 8350sd (try find any used piece) = 10k arnd
2- pioneer 6902r (try find any used one) = 6k arnd
3- alpine type r components (try find used piece) = 6k arnd " i will suggest u that just install front components no rear"..
4- amp for speakers any korean or american = 5k arnd
5- 2 * 308d4 pioneer in 38hz enclosure (find in used it will b better) = 10k with box max
6- solid audio f10d or f11d (find in used) = 10k arnd...
7-wiring,fixing etc = 3-4k max...
So your total including front and rear speakers is = 10+6+6+5+10+10+4
= 51k
if u don't go for rear speakers then it will b arnd = 51-6
= 45k