Doubles zp weapon trading system

Ok you guys I was reading up on an earlier post about having a trading system for double zp weapons and I came up with this idea so far....
I know how some of you have won 2 of the same weapons from a zp crate (I'm mad jelly of course) and think to yourselves "dang it now what do I do with the second one"?... Well wouldn't it be cool if you could trade it for a perm coupon item from the past? (E.g.ak gold,m4 gold tiger,m4-c)? The trading system would be called "a blast from the past"
Second Option- some of you already have all the previous coupon weapons so the second option would be to trade the extra gun in for 250,000 gp (which isn't all that bad considering it's really just an extra weapon lying around with no use and some of you could use the g.p.)
NOTES
-zp crate doubles ONLY gp crate doubles do not count since you don't spend your own money on those crates
People receive the guns or gp they want and cf makes money.... thoughts? :)

Comments