value of stock case glide???

I have two stock case glides was thinking about building for my truck buy now thinking of possibly selling them and wondering what the value is? Both are supposed to be out of big block Chevelle's and one is supposed to be in working order.

they are around $50 down here

i got 3 of them up here in mass , i bought 2 at carlisle swap meet in Pa for 75 for pair as cores and have the one i had built up for my car now .

Rebuildable cores prob 50-100 each id assume maybe a little more

correct me if im wrong i think i was told the 1.76 stock geard glide is worth a tad more than the 1.82 gear ones ?

Thanks guys I think I will keep them lying around and tear into them eventually.