WTT or WTB: Marathon Dureme 40's

[jandrews_nyc]

Hi, 

I have a new pair of Marathon Dureme 50's that I've ridden for no more than 10 miles.  They are excellent and so much fun, but I can't realistically use them on my Hillborne with Fenders.   I'd like to trade for a new pair of Marathon Dureme 40's.  I've thought of keeping them and using them sans-fenders once in awhile...and I may still do that, but just putting the feelers out there.  Does anyone have a pair of 40's they like to sell or trade for 50's?

thanks

Jason