Alfie, Ned & Jack (with accessories), value ?

Hello,
I've recently discovered this forum and that my little trains that were hibernating in the basement have some value.
I'm not sure how much they're worth though, as sales seems to be few and far between.
Anyhow, at Super's suggestion, I'm posting here to get a fair appraisal.
I've included a picture of them. (My daughter insisted on adding her favorite lego horse)
Cheers !