Cool, here's the reply for public view:
For the alterations: I would definitely have any shortening done by a cobbler. The way the cuff is made, looks like there would be two layers to work with, and you don’t want the top to look unfinished (can’t just chop away like I did with mine). I’d go as tall as you can without them showing through the jeans; that way you can still trot them out with skirts if you so wish. ETA: Saw your reply about going only wearing the boots under jeans... if that's the case, then you can go as short as you wish... as long as they don't make lumps under the jeans, it's all good. Taller will we warmer, shorter cooler. I'd personally keep as much of the original as the jeans will allow, just 'cuz I'd feel bad about the discarded leather pieces, but that's just me, personifying inanimate objects. If they fit under your jeans as-is, then you don't technically need to alter, either.
For the color: A red color sounds great! Since I haven’t seen the dress, my advice would be to pick a red that is just a little different from the red of your dress. A similar idea to Angie’s post about matching accessories: http://youlookfab.com/2009/01/.....and-shoes/. I do like Rosee’s suggestion of the cherry color but, like I said, that’s without seeing your dress. To answer another question that was brought up on your thread, none of the original color should show through after the full three coats of dye. And really, it any does show through, you can always add more dye! ETA: The texture of the leather -- like pebbling -- will show through. Distressing will not show through, but your boots don't look distressed, so I don't think that's an issue.
One more ETA: I think you said you ordered all three colors mentioned -- if that's the case, you can test out the colors on the inside of the cuff (or on the scrap pieces if you get the alterations done first) to see what the color will be IRL.
