Well, having ditched the Touch and Sew 760 as there were broken bits in it, but a whole host of decent accessories for slant shank machines, I bit the bullet and purchased a Touch and Sew 784.... for a whole £30..... I picked it up after work this evening and was amazed to find that although it was made in 1975, it is like new!! I have road tested all of it, and works brilliantly. Have started FMQing and it does it beautifully. I have even had the insides out (as it were and it appears untouched and very clean.......virtually no fluff in the bobbin area either.
It just goes to show how much fun you can have for £30!!