Raleigh Bikes and Diamondback Bikes - Mountain, Road, BMX and Classic

I have an old Raleigh, maybe sixty years old. It was givin to me by my grandmother and I've tried to get it fixed up but it's hard to get parts for it so I'm trying to price it to sell for parts. It has a good Brooks leather saddle, according to Rothar in Phibsborough I could maybe get 60euro for that alone. Anyone know of where I could get it priced or sell it? Brought it to bike shops all over Dublin city centre but none of them had any ideas... It needs a bit of work on the back brakes, can't seem to get it repaired unless someone who collects old bikes would have the parts or the interest.