Austin's is a Great place to get supplies from, I live in Arizona = 120 deg in summer, last summer I asked Austin's if I could place a liquid yeast order and have it packed and shipped on the follow monday so it wouldn't sit in a brown oven with tires over the weekend, Austin's said Sure We Can Do That For You !
They even surrounded the yeast and ice packs in the middle of my grain order to help insulate it, just like I asked them to do, it worked great.
I asked this same question of just about every other big supplier and the answer was ether, we have No way to to do that or just No we don't do that.
Thanks Austin's Homebrew Supply, Great Service, Friendly, Knowledgeable Staff, Quality Supplies, Orders are Right the First Time, Fast Shipping, and the Only Supply'r I know of that will hold your order till the date you want it shipped.
I have ordered from Austin's about a dozen times now, its always the same experience, GREAT!
PS I have not tried a ingredient kit from them, as I order grain's and make up my own kits.
Hope this helps.