Originally posted by InitialD
Or buy them seperately... Tamiya, Xenon Racing, Speedmind etc sell a lot of M2 button head / countersunk titanium screws.
Just count the number of screws that you need from the manual. Pretty easy. The only thing I found hard to get are titanium cap screws and titanium phillips screws under the chassis. Both you would better off be using steel ones. 
I think most of the screws are M3.
Better to use stainless steel screws for those at the chassis. Stronger. Weight is not important there since it's already low at chassis level.
I do have problem finding the 2 long M4X25 flanged screws(1019) at the front bulkhead in titanium though...