Local gunsmith made a trade offer today by taking an old gun that my dad gave to me for a new compound bow that showed up at his shop a few days ago. The offer is for a

Brand new 2006 compound Diamond justice loaded with all the goodies, case, shafts, sites, release, etc.

and the gunsmith gets

Winchester model 1906 made in 1922, Standard model, 12 groove slide handle, long rifle .22, pretty fair condition.

The bluebook value of the gun seems to be around 500-600.00. From what I have researched the values seem to be an even swap. Need advice if this is a fair trade and take the bow or keep the Winchester? Any advice would be greatly appreciated. Thanks