In case you guys aren't keen on splitting up the set, I'd gladly pay for all four springs if the spring/price is right, but you can just keep the rears and we'll save on shipping
The rears won't fit on a g35 unfortunately.
btw - how do you distinguish the fronts from the rears? On my car the front coil wire and overall spring are a slightly smaller diameter marked with grey and yellow paint dots.
Let me know what might work for you.
D