Thanks again guys, I have managed to get a better look at things and have checked the things you have mentioned and apart from needing a good clean up, there does not seem to be much wear on bits at all, so some pics.
Head stock end of leadscrew, then the middle and tail stock end.
thread chasing plate
better pics of the associated bits
what oil do you guys use on the tools and lathe ways etc??? got some more of the general lathe I will put up also, just some closer ones.