Original cost $300.00, will sell for $125.00 + shipping.
Includes coil over spring of course.
I put the Bullet Speed Quad kit on my SS so I have a left over QA1 Dual adjustable shock for the SS rear. Parting all my left over SS swingarm & angle drive stuff out at < 1/2 price. FWIW, I think the rear shock is responsible for 80% of the drivers impression of shock performance. The QA1's were a HUGE improvement over the stockers.
Another possibility for your squeak. I had one that came from a hood fastener that was rubbing on the engine cam tower. Sounded like it came from the 'firewall' like you described. Drove me nuts for awhile. Look for a small rubbed area on the forward part of the highest cam tower.