you guys think this is worth it?

I don't know much about resale on a 4.6 but if it's complete/near-complete it is most likely a good deal. Check on ebay and some classified sites to see what they bring.

What year, how many miles, which heads exactly, how complete it is, etc., will have effect on how much it is/isn't worth.
 
The older blockers are better,and newer heads are better,figuer our witch it is and decied.

I got a complete 93' Linclon 4.6 alum motor for $300 had a "slight knock" that turned out to be 2 bent rods......just drivng normaly...sure.