Cells being vast with respect to the nucleus inside them, we’re looking at somewhere between all day and all week to make one cell. While the nucleus is very complex, the cell’s simpler but more massive parts also have to be handled that same old slow billion atoms per second.
Your mission, should you choose to accept it, will be to make the machine that plants a new atom every nanosecond (one billion atoms per second) and can hold the vulnerable cell it’s working on in a benign environment (can’t let it dry out!) – –
Call me when you have that working.