I agree with Ed, it really needs the OS 55 so you don't have to move everything to the back but if you're using a 61 that's what you'll have to do.
I have an OS 55 NIB but I figured I'd save it for the Dirty Birdy.

I don't like that the carburetor is so high above the fuel tank. I sealed the exhaust halves so maybe it will have a bit more back pressure. I'll probably end up putting a Jet exhaust on it.

I can't remember who's thread I was reading, maybe Brian's, but it said the Kaos should set on it's tail when the tank is empty...the guys at the field thought that was funny but he was right.

I don't know if I made the gear too tall but I'll give it a chance and see how it tracks. When I got it the fuselage and wing were covered but the covering stripes didn't match so I restriped the wing. I ghought about replacing the canopy but I'll use this as an everyday flier so it's fine.

BTW, those aren't two air compressors, one is a vacuum system I made from an old compressor tank. Makes it really nice to wheel it around the shop or take it to a friends.