Looking to swap new .22 HK 416 D145RS for a Fly Set up of similar value

I am getting more into the fly fishing scene and would like to exchange my brand new never used .22 rifle for a Fly setup for Steelhead fishing. I am currently selling the rifle for $475 on Armslist, so something in that range would be good or we can add/deduct money to make it even.
 
Per Heckler and Koch's description here is some additional info about it:

The HK 416 series rifle was designed for U.S. special forces as an alternative to the M-16 variant standard issue firearm. The 416 D145RS Semi-Automatic Rifle features a quad rail forend, retractable buttstock with storage compartment, and Rail Interface System. The HK 416 D145RS Semi-Automatic Rifle in .22 L.R. is manufactured exclusively by Walther under license from HK. It is the only genuine HK tactical rimfire replica available in the world.

http://www.waltherarms.co...eplicas/hk/416-d145rs/
http://www.armslist.com/posts/5027297/pittsburgh-pennsylvania-rifles-for-sale--hk-416-d145rs--22lr---brand-new-in-box

Thank you for looking!