Based on the infographic for the U.S.S. Peregrine as seen in #109 of "Strange New Worlds" with the *highly* confused numbers for the ship's dimensions taken literally. ;-)
Despite being indistinguishable from the SNW Constitution class, the dimensions stated in the graphic seemingly mix together numbers from both the SNW and TOS version of the ship. The Sombra class was also described to be "fast" but the graphic sets it's maximum speed at Warp 8, no faster than the Constitution...and seemingly slower than the Farragut-type which is said to be capable of Warp 9. ¯\_(ツ)_/¯
Primary Hull diameter: 127m
Secondary Hull:
Length - 104m
Width - 127m
Height - 73m
Nacelles:
Length: 157m
Diameter: 17m
Overall Dimensions:
Width [sic]: 443m (I assume that was meant to be 'length' in the graphic.)
Height: 93m