tnx bro, sheld out 12K inclusive of railings...
Lamentably they drilled holes on the roof for a secure fit, but they also treated the holes with anti rust coating and sealed it with black silicon.
Didnt bother with the warranty aspect, bahala na c batman hehe

, also the manager of the local distributor here advised me that if i wanted a roofrack installed i better source it outside of kasa, otherwise it wud cost me an arm n a leg
Another point, if later on rust will develop on the holes, it is but fair that i assume the risk...but as to rust sa other parts of the car, i presume the warranty would still apply, the warranty is not totally voided by the installation of the roofrack