OK, looking back at my notes, last year, I received an order of bareroot strawberries (75 of them
) on 3/12 and planted them over a 2 week period. I kept them bundled (removed rubber bands) and wrapped in moistened kraft shipping paper inside the original perforated plastic bag. They were kept in my unheated garage in two layers of cardboard boxes. Since they had leaves, I kept the tops exposed during the day but on the floor so the light they were receiving were minimal. On nice days, I dragged the box outside so they had some sun to keep them acclimated to strong light. When the kraft paper started to dry, I watered with compost tea. I based the care on general description for dormant bonsai winter care around the forum -- i.e. keep the roots protected from freezing temp, give light and humidity to the leaves.
If you set up a hoop tunnel where you plan to plant the strawberries, you could plant a couple of weeks ahead of schedule. You might try planting half in pots and trying to keep alive the rest bareroot. Another option might be to subdivide the bundles and "heel them in" like they're fruit trees in a big pot of mulch or potting soil. I believe the key here is to keep them dormant unless you have a place to let them grow without freezing, keep the roots from drying out without waterlogging them to rootrot/fungal problems or freezing, and keep the leaves from drying out or dying from lack of sun (actually the leaves can die but that would require extra effort by the plants to grow new leaves)
If you don't have compost tea, you might try rainbowgardener's cinnamon stick/chamomile tea brew.