So much faith in me LOL.
Acclimization can be a bit of a pain if you are new to the group. All I can offer up is what I do but I have a few advantages that you might not have so that may change the way you do things.
The main goal here is to do everything in your power to keep the plants cool.
So, as xvart said, check my other thread for media and pot recommendations potting up and the like. I will add a small thing here though, after talking with another very successfull grower about his setup you might consider adding up to 2 additional parts perlite to your media. I have not tried this yet so I can not swear by it.
If you are only able to grow outside then you may have difficulties as I am assuming that your tubers have not even started growing. So if you can grow them inside, especially in a place like a cool basement or the like, then you will probably do better.
Basically what I do is pot up my new tubers in pre-prepared media that is barely damp (my method for doing this is to wet the LFS component of my media and wring it out till no water squeezes out, the minimal moisture left is all you really want.) I pot up the tubers and place them in my sunroom grow area where nights tend to stay below 10C till mid-late March. Once nights start to break the 10 degree mark I move the pots down to my crawlspace which is set up for highland plants. The temps in there do not break 25 even during the hottest part of summer but nights tend to stay right about 10-15C.
I keep the pots dry but in ziplock baggies until I see above ground growth. When growth breaks surface the pots go in a shallow tray, no more than 1cm water. Wait till the water is gone before adding more.
Keep them under as bright a light as possible without raising temps and the light cycle should be no more than 12 hours on preferably 10 hours on. Grow the plants like this for as long as possible. You are shoting for a truncated season since you want them to go down and come back up again for your winter but this rarely happens in a single season so be patient and keep cycling to fit the plants needs. I have also had rare occasions where a plant will go through an extended season growing all the way through the summer and into the winter. This does not happen often but when it does just move the plant to your winter area when winter comes and keep an eye on it.
So again, the goal is to keep the plant as cool as you can. If you have a highland area then this is probably your best bet. If not then try for a basement. Failing that then use light coloured pots and grow near a swamp cooler or some such.
Hope this helps