Good luck with your sale/trade, but if I might offer you my advice, keep your CZ-70.
Since I bought my CZ-70 to replace my Whites DFX (about 8 years ago), I have owned and successfully hunted with the Sovereign Elite, the Excalibur, the Explorer II, the Explorer SE, and the Sovereign GT. I have come to the conclusion that the CZ-70 is the best machine for all-around hunting, land or beach, and the Excal is the best machine for the beach. I have found more minnieballs and silver coins than I could ever count with the CZ and as many rings, chains, etc. with the Excal.
The CZ will pull targets as deep as any machine and has the added benefit of being "rainproof". Also, if you are the original owner, like me, a lifetime warranty. It's a very well-made machine and hits nice on deep silver and relics. I guess what I'm saying is that you can search far and wide and you may never find a machine you do better with. And they don't make them anymore, so if you get rid of it you may have a hard time finding another one if you ever decide you should have kept it. I know several people who have tried the rest and come back to the best.
I just hit the woods today and used my CZ for the first time in months, having been in "beach mode" for the summer. It was nice to get back to the CZ and I found a 3-ringer minneball, 4 .58 cal musketballs, 3 wheaties, a military pin, and a nice watch fob. You just can't beat the CZ-70.
Just my opinion. And if you still decide to sell or trade it, consider this my free endorsement for any potential buyers.
