The truth is that, at the beginning, I was afraid to buy something so old, especially because the purpose was paint it and skating, but in the end I decided.
1.I Clean it with a little hot water and a nap all the wood.
2.I dried it with a dryer.
3.I painted a crude acrylic paint and added some leftover paint was fuchsia.
4.I sanded the edges slightly to give the aged look.
5.I gave bitumen mixed with turpentine.
6.Finaly I gave it a layer of protective wax.
Now I have to put in their place as we move.