For the hassle, I would rather buy new ones. Even if you were getting them for free, IIRC shipping between Hawaii & the mainland is so expensive.
Compounded with the fact that the youngest (by age) M35S is now approx 10 years old. Depending on the mileage, those could be some beat up parts you're installing.
Once again, for the labor & shipping costs, I might as well do it once and at least get a warranty with it. There are quite a few choices of good suspension pieces:
- OEM through dealerships that sell online/eBay
- Non-OEM standard parts through eBay/Amazon/Rockauto
- Upgraded/aftermarket components like coilovers (the company BC coilovers comes to mind - they have a pretty good distribution network)
Good luck on whichever path you choose.