Help me chassis Chevy Truck 57

Hello everyone, my name is Clemente, I write from italy. After so many years of sacrifices I managed to buy (my great dream) the Chevy Truck 57 with the roof down. But when it came to my house looked good and I saw that the chassis is not made good (unfortunately the seller was not very honest). Now I want to begin the restoration starting from its chassis. You can tell web sites where can I order a new chassis for my truck and have it send in Italy without having to spend a lot of money? (I am not a millionaire) but a great enthusiast. Thank you all for help.