Tim,
Having re-read the posts above, the fault is mine - I see that I've been a bit confused as to who has a 3D printer
@trshooter might well be able to modify the file I posted, to make the attachment point sturdier and suitable for bolting onto the SG carrier, and sort you out with a physical copy. Have a word with him if you can quantify the difference between the Precise and SG, and see what can be worked out?