Somebody just tell me what to wear

I'm in my cousin's wedding next week and she gave me and her other attendant free reign of dresses and shoes, with a few restrictions:
- Dark red dresses that are similar, though they don't have to be exactly the same
- Flat sandals that are semi-dressy, as this is a beach wedding, so heels won't work
- Whatever jewelry we would like

If you think this is nice and less restrictions make it easier you're wrong. This is when I envy men - my husband walks into our closet daily and picks out a pair of chinos and a complimentary polo shirt. That's it. Add shoes and a belt in one of a whopping 2 color choices and he's out the door. For me it's more like: does this cami go with this cardigan? and if so, can I wear this skirt? Is the skirt too springy for this time of year? And if the skirt is OK, can I wear those sandals? Nope, because I haven't painted my toenails. And it goes on. Because of course, I haven't even thought about jewelry for the day yet.

So, picking out a dress for this wedding and then also finding shoes and jewelry has proved to be a bit of a chore. Find me a suitable frock in one distinct color and fabric, but different styles to fit very different body types and without a hefty price tag (because let's face it, it's supposed to be versatile, but despite best intentions, you'll really only wear it once). Meanwhile the groomsmen simply need to show up the day before the wedding, pay their $59.99 rental fee and be off to their requisite round of golf.

It's times like this I really just wish someone would tell me what to wear...