UOLugNutz you Sir are a Saint in the making! to go thru all of that, in such detail, is truly worthy of much praise! you've been helping me along & along and i truly do appreciate every last bit!!
here's where the real testament to your help comes in. i honestly, no questions, understood all of that quite easily, right down to the x/y =0/0 then click.

now, for some feedback for you. i had adjusted the click coords and when the character got the gump open i saw "50" appear to the right of 'buckler' on the gump ITSELF, not in mid-air as player 'speech'. being there were 50 odd bucklers scattered around the backpack i didn't notice one suddenly missing and like an idiot, assumed it was still incorrectly trying to donate them & i stopped it. i'm going to re-calibrate the blue dot coords to be 100% sure of the location, but in my notes i've got 37 270, so yes Sir, your 'guess' is pretty darn close!
i'll give this a test & post the results in a little while.
Thank you UOLugNutz, Trailmyx, Alpha, Bookwyrm, Manwinc, Nobama, and anyone else that offered advice on this issue!!
God willing, my next post will be 'No issues to report!'