John,
That is a very clean ziptie job there...well done!
One thing to ponder in the future...if you ever have any issues with the 500 tail being too low for comfort try the landing skids from the 600 and use the skid pipe from the 500 - just wrap a few times with electrical tape where the pipe goes through the skid to take up the excess space and viola...instant tail clearance and the mod looks very decent.
I'll be hitting the shop when I get off from work in a few hours...need to get things moving again on the build.
Sorry for the cold weather everyone seems to be having. [
]
Mark