I have a set of Ford Cosworth Axles and a Stainless muffler.
Axles - $175
Note the axles do not have the joint for connecting to the differential, I am using the differential with Miata hubs so I am using that part. One is shorter than the other, which is standard. It includes the nuts.
Muffler - $200
The Muffler is too long for me to use with my setup. Dimensions are 32x6, this is from tip to tip total length.
It was purchased from MK Motorsports, it has a 2.5 inlet and outlet and has a hook at the end to bend the noise and exhaust away from the rear fender.
I will accept payment via PayPal and will figure out shipping based on your preference for service and where I need to ship it too.