Well, you don't need a leather saddle, any old saddle will fit. If you have any mechanical talent and any tools, you can usually get one of these working yourself for less than a hundred bucks.
Take the shinyest of the pair and use the other one as a donor for any parts you may need (tires, tubes, cables) and keep the other one in the back of the garage and aquire parts as your budget allows.
Spend some time exploring Sheldon Brown's site;
http://sheldonbrown.com/retroraleighs/index.html
and if you have any questions after that, just ask us, we're all Raleigh experts here.