hmm.
for bumpers and stuff you could try kek seng.
Head towards kulai from skudai. approach the new tun aminah flyover bridge, keep left, go below the bridge and do a u-turn. keep left and turn left when you see shops at the left. go straight along the shops and kek send will be at the right to the end.
Kek send brings in scraps from singapore where they are are also based there. so expect plenty of E34 and newer series parts like bumpers, panels, interiror stuff like leather seats etc. i'm sure you'll find things you need there.
near the tun aminah flyover bridge. u-turn below it
strips and stuff shouldnt be expensive, a new original could be ordered through singapore or the workshops here.