here are the measurements. All three wheels sitting on the ground and each measurement is rounded up to the nearest 1/2 inch and this is with a Pete's CF Spinner, Extra Style so it's the same as the stock spinner. Each one is at the locations widest or tallest

Cheek to cheek at the widest part (close to the front) = 10.5 inches
Top of rudder to the ground = 18.5 inches
Tip of spinner to the ground = 17 inches
Total length measuring from the bottom of the rudder at it's widest point with the rudder straight = 76.5 inches