Hey Nino, do you know for sure that Volley used 31" legs heres a link to what sshould be on it:
http://www.xmission.com/~daina/tips/pub/tip0130.html
I'm a bit of a noob when it comes to em's
Spirit of 76 onwards used 27 inch legs. Volley was produced after Spirit of 76 and it has the new style door that appears on system 1 etc. So I was incorrect - you need 27 inch chrome legs. I jumped to the conclusion that you needed 31 inch legs based on the fact my Volley has 31 inch legs.
So grab a set of 27 inch chrome legs - they will be MUCH easier to track down.