Drew/Nick
Very interesting list, Drew. Thanks for posting that!!
Checking JJ Halley and his RAF serial monographs most of your Beaus fit with his listings.
The following does not!
T5165 (very, very few aircraft in the T5100-T5350 batch ended up with 89Sq. He lists only T5113 and T5172)
V8220 (far more aircraft were delivered to 89Sq in the batch V8219-V8385)
X8012
From own experience handwritten documents are a pest (sometimes

) and if the individual who took down the notes or JJ Halley have made a mistake, I don't know.
Cheers
Stig