There isn't a huge third party market for these, the way there are, let's say, vintage Transformers, so trying to put a value on things is a crap shoot. Good deal? I don't know. I'd say no, even if it is only $40 you spent, because I suspect you will be hard pressed to find stuff like extra hands. You would be better off buying complete figures for something like this.
A few weeks ago, I bought some 3 3/4 Matchbox figures from a guy on TFW2005. Here's his thread. I see he has a complete Battle Pod and even the Officer's Pod. I doubt he'll just sell you a hand, but you might be able to work out a deal for the complete ones.
http://www.tfw2005.com/boards/items-...ap-meet-3.html