Canopy frame 6-C-2-3 (steel L-profile) was connected to rear frame 6-C-2-51 aluminium square, but this creates a 2mm step in transition between the parts. Facing against canopy. To avoid cracks later, I grind down steel profile for a smooth transition. After 6mm rivnut was installed, and stainless steel-bolt cutted 6,5 mm, I mounted the canopy arrms. But I found the "head" of rivnut will be in conflict with hook at engagement. To avoid this I installed a large diameter washer outside rivnut head. With countersunk rivets. The upper frame, loop, has a too large radius to fit well. And need some adjustments. Not a easy task, I must say I´d prefered the US variant, a round tube must be easier to bend.
