Would be super interested to hear if you've decided on an option yet! Some great ideas in this thread, and I'm currently i nthe same situation. I've been looking at some of the waterproof MWS scales recently (from here:
https://www.meltrons.com/collections/scales) and can't quite make up my mind - anyone have any experience with waterproof scales and exactly how 'waterproof' these things are?
Also, loving those DiY additions, N.TexasHalfAcre! Might have to pinch them for my project...