HELP!! Hurst Mastershift

[masterlock]

Hey Guys
So I bought a Hurst Mastershift a few months back, come to find out they discontinued the mounting/installation kit for the damn thing. I have a saginaw 3 speed and they make another kit for that transmission for other vehicles. My question is do you think that I should buy the installation kit based on the fact that it matches the transmission I currently have? I already called Hurst and the guy sounded very uninterested in my problem and was no help. PLEASE help me out here guys!!!