Advice needed for front derailleur

[blueboy]

Had a slight problem with chain jumping off large front cog on my raleigh banana.When I came to adjust l and h screws on Sachs front derailleur found them to be seized up and rusty to the point that heads on screws chewing up when trying to turn.Question is what alternative front mech can I replace it with.I,m not too concerned if I had to replace with modern parts etc just need to know what to buy.Thanks in advance for any help

 

[predki]

What model it is? Maybe you could replace with the same?

http://www.ebay.co.uk/itm/Sachs-Front-D ... 3f206b97a7