Dimensions of Bambu Lab P1S's inner screw holes

Bambu Lab P1 Series User Mods
1

I’ve been trying to mod my printer recently, and it would be nice if I had the dimensions of this area:

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Does anyone know what the dimensions of these screw holes are, and is it OK to put something like another nozzle wiper on it? Or does it have important cables I cannot touch??
If I can’t add anything there, where can I possibly put an extra nozzle wiper on the plane the nozzle travels on?

2

The step file provided by Bambu for the P1P frame might include those holes. That said you will probably need to verify their location with a set of calipers.