Kite messenger

Instructions
The goal is to create a kite messenger from these things based on this example: http://www.kiteplans.org/planos/ferry2/ferry2.html

To combine with 24mm x 7mm nylon ball bearing wheels.
2x 4mm carbon
2x M5x25 bolt + nut
1x 4mm brass 4cm tube (5mm externally)
1x 6mm aluminium pipe

The sail is about 100cm wide and 85cm high the triangle is equilateral. The aluminium tube that connects the front and aft part is 60cm long. A bit more of less will work too.

The read version is printed back in 2015 in ABS on a Dimension Elite.

Also printed it in PETG an a Prusa Mk3

If you make one, please share your result!

In action: https://www.youtube.com/watch?v=eq02M6AGF5A

Revision history:
1.0
First version
1.1
Updated the back section for better printer result.
Widened the wheel area so wheel didn't collide with top section
1.2
After printing, widened the (ABS material shrinked a bit so parts didn't fit anymore):
6mm holes to 6,1mm
5mm holes to 5,1 and 5,2 (middle section)
4mm hole to 4,1mm
1.3
Changed the line slot on the back part, so the line does not exit the slot by accident.

Created an extra slot so dropping parachute is easier.
1.5
Added a GoPro adapter to the front part.