Hi mate,
My spark plug caps also black in color.I asked from our mechanics about a place where can I buy red colour set.He told to look around panchikawatta.
Better you replace cracked one with black,till u find red ones.
Regarding suspension bushes,he told that it'll available in local spare part shops.
These days I'm searching double filament, double contact medium size bulb for front parking.It is hard to find medium size double filament, double contact bulbs here.
bye.