KZ650SR whats the best front and rear suspension ?

I have a 79 KZ650SR and im thinkin bout doin a street fighter style . What is the best and cheapest front and rear swaps that can be done ? I would like to have the 17" wheels that the main reason for wanting the swaps . I have seen several on here but not much info is given . If anyone could help I am greatful . thanks

A buddy of mine tells me the GSXR parts are the cheapest and plentiful in my area.
I had a look around and find that their still too expensive for my budget.
I think the best bet would be to find a motorcycle wrecking yard where you can walk in and have a look around.
Ebay and other online sources tend to add up when you factor in shipping etc.

cool thanks for the info , ill check into that . i think we have a wreckin yard close to where i live.