Hello Ron, 
 
Congrats, a really nice keris! 
 
While the blade is obviously influenced by "Bugis" style, the flow of lines does not seem to support an origin from Sulawesi; it does look Sumatran/Malay to me. 
 
The gorgeous hilt is special and may be an unique one-off - at least I haven't seen any that seem to be related or with similar features. The star-like decoration at the base is carved differently from what is usually associated with Gayo and possibly neighboring highland areas. (The pendokok looks also brass/bronze to me.) 
 
The scabbard is of an old type associated with central coastal Sumatra and the neighboring Melacca Straits area (Riau archipelago), quite possibly Jambi. 
 
For convenience, I'm attaching a few examples from Gavin's site. Please note the silver buntut in the first example - I believe Ron's keris may have had a similarly worked scabbard tip (if the scars visible in the wood are on both sides, a now lost silver buntut seems very likely IMHO). Also note the wood which is very similar. 
 
Regards, 
Kai
		 
		
		
		
			
		
		
		
		
		
		
		
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