Man Builds Full-Size Noah`s Ark

A wooden boat that large can't stay afloat even in the calmest waters.
There is no evidence of a *global* flood, and there would be plenty if it had happened.

You also need to have all the extinct animals on board as well, because creationists say that all fossil records date from the flood too (and that the entire Earth is only about 6000 years old anyway).

There were up to 14 of each animal, not 2.
You need to go further than species, because creationists also deny evolution. So you need far more than the 60,000 animals (not including insects) that you refer to.
The gases from the animals would probably be fatal. The ark as described doesn`t have anything like adequate ventilation systems.
You mention food, which would be an insurmountable problem in itself (e.g. many animals require fresh plants - where were they grown?) but you don`t mention drinking water. For at least a couple of hundred thousand animals.
Where does the urine and faeces from the animals below deck go?
How can 8 people tend all those animals?
The animals would need exercise space, so the ark would have to be far bigger yet again.
Although 8 people couldn`t exercise that many animals anyway.