What's an intake worth?

Is it important that it's a '70 intake?

The intakes themselves aren't super hard to find, but if you've got one local, it's the right year, and it's only $50 I'd buy it now.

This one's $80

http://www.ebay.com/itm/1970-340-mopar-4-barrel-intake-1970-/301764911698?hash=item4642972252:g:MP4AAOSwA4dWGmd9&vxp=mtr

This one's $100

http://www.ebay.com/itm/1970-MOPAR-340-A-body-E-body-original-cast-iron-intake-maniold-3462848-used/291424766108

This one's $199 #-o

http://www.ebay.com/itm/MOPAR-DODGE-PLYMOUTH-CHYSLER-1968-1969-340-HP-INTAKE-MANIFOLD-CASTING-2531915-/121756415986

And of course all of them will cost $50 or more to ship so...