Hello Andy and welcome. Ideally, you need a member who lives a bit closer to you ( I'm near Mansfield, Nottinghamshire) But I'll try to answer the questions.
1) I'm sure that it's worth fixing up. I can't read the name on the casting but it looks like my first lathe, a Drummond/Myford. The only problem is getting used to the fact that the handle that moves the saddle works the wrong way but you get used to it. The real problem comes when you change to a lathe where the handle works the other way, that is, when the top of the handle moves towards the headstock then so does the saddle.
2) The chuck seems to have been modified to make the jaws adjustable. That is, if you fitt 3 pieces of steel into the slots and clamp them with the sccrews in the side of one jaw, then you can adjust them the make it possible to get a piece of round or hexagon bar to run really true.
If the chuck has not been seriously modified then it will be posssible to buy the correct jaws.
The three items on the right are hand held thread chasers, used normally for finishing threads cut on the lathe with a single point tool. The other items may fit the tailstock, either directly or with an adaptor.
Hope that helps a little.
Brian
Edited By Brian H on 05/07/2021 13:25:09
Edited By Brian H on 05/07/2021 13:25:33
Edited By Brian H on 05/07/2021 13:26:13