Can't really comment on the roof issue since I never take any ride of batches before. Most of the new batches this year already have one layer of sound proof material installed, the annoying molotin sound should be minimized.

As for engine mounting issue, when go through the speed bump especially those plastic type, u will hear the kok kok sound. This cannot be solved at the moment according SA.

For the 1k service, I go for Semi Sync Engine oil which make up of total cost RM145.11 (Engine Oil, Gasket, Oil Filter)
I skip for the washer fluid as for me it is not needed.
Above price is exclude labor (Free labor for 1st and 2nd Service)