trap barrel

I am looking into "building" a Rem 1100 trap gun, any recommendations on a stock and barrel to use?

Building a dedicated trap doubles gun with "new to me" trap special barrels, and a trap special stock all mounted to a K-80 logo receiver. Fits like a dream to the receiver, but will not open all the way to load or cock. When fitted to a newer receiver or even an old K32, it functions perfectly...