Hi. New to forum. Looking to purchase a new 8 ton excavator. We have narrowed choices down to Kobelco SK75SR or Komatsu PC78US. Komatsu is a little more expensive and dealer is a little further away. Otherwise, machines have very similar specs. Have priced both machines with 4yr warranty since that is standard with Kobelco. Does anyone have any first hand experience with either of these machines? Specifically concerned with reliability, maintenance costs & dealer support. Located in Toronto, ON. If anyone is local and can chime in, that would be great. Thanks in advance!