Judging lathe and woman only by photo carries comparable risks.
There might be a beauty outside and rot inside.
Regardless of what is being said about hardly ever used lathes etc the truth is that nearly every ML7 currently on the market is going to be a reconstruction project, particularly if it is *precision* what you are looking for.
Dedicated modellers who care about their machines don't like to part with them easy and even if sold it is often done privately in inner circles, not on ebay.
So you should assume that you are buying set of castings with some mechanisms working well and other which don't. Fortunately it can all be rectified to pristine and often better than original condition, very much like I did with my own.
Make sure that you pay attention to detail and material specification while undertaking such project. 2 screws might look identical and yet behave entirely different once fitted.
By doing refurbishment by yourself you will also learn how lathe works and this is always a great asset.
ML7 is easy to understand and averagely intelligent person can work out many things by himself and it is a great fun. Certain aspects which are more specialistic are well explained on the net.
Martin