Put in it 2 animal of each "kind"
It was only two of each kind of unclean animal, the clean animals numbered 14 of each 'kind', and 14 of each 'fowls of the air'.
Genesis 7:1-3 (KJV)
And the LORD said unto Noah, Come thou and all thy house into the ark; for thee have I seen righteous before me in this generation.
2Of every clean beast thou shalt take to thee by sevens, the male and his female: and of beasts that are not clean by two, the male and his female.
Of fowls also of the air by sevens, the male and the female; to keep seed alive upon the face of all the earth.
The volunteers should also have only 7 days in which to collect all these animals.
Genesis 7:4
For yet seven days, and I will cause it to rain upon the earth forty days and forty nights; and every living substance that I have made will I destroy from off the face of the earth.
There are a few 'unknowns' that would affect the experiment, for example, we do not know how many people were employed in the building of the Ark.
Also, there are two Flood stories merged into one account, so which one do they go with?