As FLA says, let them have 2 more weeks, during this time go to your spot and dig wells out 4 times your pot size wide and 3 times its depth, the soil should be prepared by turning it over a couple of times and adding about one cup of hydrated lime per square yard of soil and mix in manure and your grow medium (not MG or pre nuted) the soil should now be watered several times and left to sit about one week.
Harden the seedlings off by putting them outside for a couple of hours a day and bring them back inside, do the same the next day, then do the same but for 4 hours for 2 days then 6 hours, then after this the plants are ready to be planted into the ground where they are going to grow, dont plant too many plants together, do not form a pattern that can be seen from above, 3 feet apart at least and space the plants over a large area.
How do you plan on looking after the plants once they are outside?