[a9mmfan]

... If I put it on GB, then I have to take it off of this site, correct? I don't think it's possible to negotiate trades on GB, so that's why I'm listing here, a site made for folks who are Marlin experts who could appreciate a rifle like this. Hope this helps explain my rational, and feel free to make an offer. Thanks!

I have negotiated several trades on GB. If you look at some of the listings, you will see that some offer trades. I don't have a dog in this fight, but it still sounds like you are wanting this to be an auction.