Ikea VARIERA 52cm knife holder

Found that some older (VARIERA) and newer series (UPPDATERA) in the largest version have one side that is 90° an the other 50° but the lengths are not the same. 

Here are two versions for older series VARIERA, normal and a slim one (to save some filament)
user 2 walls, 2 tops and 2 bottoms, infill 10%, no supports needed