I'm starting with snowkiting but I've spent pretty much all my life on A/T skis in backcountry
It's not problem to buy any downhill skis and mount A/T binding on it, but the difference is weight. Then you will definitely need A/T boots. Those are again about weight. You would probably want some little harder and heavier boots than super light touring ones as you still want good, hard ski boot for snowkiting.
Bindings - there is lot of freeride A/T bindings out there. Again weight! If you plan to hike a lot I'd look at dynafit -
http://www.backcountry.com/dynafit-tlt- ... UxMTAwMDQw
It's super light and no additional weight on your boot while hiking - that is big difference! If all you need is to hike up to the tree line and it's not 10miles:) and you don't care that much about weight, then go with any freeride A/T binding (marker, salomon,...) Something between would be Fritschi Diamir - it's freeride type of binding but pretty light in that category.
Just be careful with Dynafit binding! you need comaptible boots for that one! Those freeride bindings would fit any boot (even downhill boot).
Skis - as I said, I would go with some A/T skis because they are light. No problem for snowkiting. I use some heavy hard skis just for spring backcountry skiing on hardpack (but not problem on light skis too) There are some super light carbon skis out there, but what you need is again something between. I'd take a look at some older BD models like: http://www.sierratradingpost.com/black- ... s~p~2872y/
light but still hard enough for everything. Dimensions (sidecut) of these is also good for everything from powder to hardpack. If you plan to ski jsut powder I would get wider ones (but it's usually not the case for snowkiting...)
Any local backcountry store can cut skins for your skis (or online if you send ski dimensions) or you can do it yourself or you can buy skins that doesn't fit your ski perfectly. All work. Just if you have skins that doesn't fit your skis perfectly all the way to the edge they won't be that good in uphill like prefectly fitted skins... (not a big deal in powder but big difference on hardpack)
Telemark skis -
hmmm... I've seen some gyus snowkite on tele and it's crazy! definitely not an option if you are not REALLY good telemarker
OK - just some ideas
But basically if you find some good deal on used A/T set (ski+bindings+skins) on craigslist or wherever just go for it! Everything will work
I'd just go with NEW boots because today they have mostly heat-moldable liners and you don't want boot with somebody else foot shape
If you go to some backcountry store just tell them it's for hiking/snowkiting so you don't want super light boot but you also don't want some hard 130Flex boot as you are starting to ski... they'll find something:) And again just double check to get boots for dynafit bindings if you would plan to get them...
Uuuuh, hope it makes some sense
Just PM me with any question on specific gear or whatever!