Value of 70 LS6 Chevelle exhaust parts

[DEUCE]

Hello everybody, picked up some exhaust parts, 3973857 LH tail pipe with resonator, a pair of mufflers 3983320 in boxes looking for some direction on value before I sell.
Thanks Mike

[dvss1]

These parts are not ls6 specific. They fit 70 thru 72 big block chevelle. The muffler was also used on the elcamino and sprint too. 3983320 is the right hand muffler and the left is 3983319. As to value, I bought a NOS 3983320 muffler from ebay last year for 99.00.