For some reason yours look a little porky...don't mind me I'm a scaleaholic
I am using the 4 view drawing found in the Revell 1/72 scale plastic model as my reference,of course that could be off as well
but it does look longer and sleeker. how long is your KA-52 body? Mine works out to 19"
I do love some of your scale bodies..especially your new 500E which I plan to get as soon as I get into the CP helis..probably a Blade 400 3D