Phase II :
once you get up an running, storing data and such, you will most likely want to display it in real time.
The beauty of the UNO, well the software, is that if you feel the need to expand or go faster, or do more, there are other faster chips that will take the exact same sketch (program) with very little changes.
Sadly, the UNO is not fast enough to read the data, store it, and drive a display.
so far no one has discussed speed or how many times per second you want to log data.
as in motors, speed costs money, how fast can you afford to go ?
luckily, in this area, the entire project will cost less than one tire.
I HIGHLY recommend the UNO/RTC combo to start, because it will not be any wasted or double work to expand or move up. AND, if you do move up, you will use that for something else.
just to put it out there, faster chips and higher resolution Analog to Digital chips are there and are pretty low cost. and are and easy path to move into.