I just got a Gamma progression 600FC -D (1996) from a moving sale, cost me less than $100. in very good shape. the pre-owner only use it for badminton. I'm thinking upgrade it to electric pull, only found the ES head on ATSSPORTS web site which cost more than $500 shipped. Any one know where can I get a cheapo? I don't mind used or even not working as I can fix most e/e stuff, complete and compatible are just enough.