Lars,
my cargo Bike pod is not for sale. Its custom made for the two Schauffs we have . But the two Dahons 20" will go in there too. Less hassle to set up, but less comfort to ride. We do not fold the dahons, just fold the steering column and take the saddlepost off. The front wheels has to be taken off. But putting them on does not even dirty your hands, while putting the chain up on the Schauffs will.
Before making the pod we went through the process deciding how to transport the bikes. The cabin was no option cause of the dog being on top of the luggage. Hanging two shells under the wingswas drag and weight wise outruled. A one piece belly pod designed as a rear loader with no doors on the side was the winner. To make loading easy the rear loader needs a drawer where the bikes get attached to.
once you decided which bike you want get measurements,
Then look for a car roof box that fits the dimensions by width and length.
The lid of the box will be used as your mold to laminate the bottom of the new box. Make a styfofoam mold for the top that fits the fuselage and the bottom.
Once the bottom is laminated, cover it with plastic foil and laminate another 2 layers in to make a fitting drawer that can be pulled out. Its hepfful to have the sidewalls of the drawer filled with 5mm styrofoam.
Onve the bottom and top piece are laminated together, cut the rear open and hinge it on the bottom.
The bikes will be loaded on the drawer, while its under the wing in the shadow. fixed with belts, then the drawer goes into the box. Use lockpins to attach drawer to the box, so it will not slide backwards.
My box is made of carbon fibre an weight with the dawer is less than 12 lbs
I keep it loaded on a dolly which has a scissors car jack and I can lift the loaded box up, so the attach fittings match the Husky. Insert 4 bolts and nuts and ready to go. Putting the pod on is less than 3 minutes.
If you kike I can make some detailed pics. It slows down by 3 -4 KTS, when flying 21/2000 only 2 KTS CHT is 30 °F higher with cooling lip.