There is enough to do during the day. But there are disadvantages. You are stuck with a single effective exposure. The Mark IV looks like it can track OK for as long as is needed for the next round. All this to agree with Chris.
Automation is the way to go.
There will be lots of day work just looking at all the stars to make sure that they match other work and that they make sene. Enter the command to do the exposure. Turn the filter wheel. AND holding down a job where you have to get up in the morning. The Mk III does all the work and lets its owner sleep.