I was lucky enough to get my hands on a NIB GP Ultra Sport 1000 kit this week and am considering converting it to a gas engine. I don't have any experience with gassers so would appreciate any recommendations or potential issues with this conversion. There appears to be quite a few gas engine choices in the 20cc to 30cc range which I think is what would be needed to fly the US 1000. The US 60 is one of the best flying planes I've flown and I currently have one powered with an OS 75AX, it is an absolute joy to fly. I'm hoping to get another gem with the US 1000 but don't want to think about the cost of glow fuel to fly this plane - the reason for considering a gas engine. Your advice and recommendations will be greatly appreciated.