I have purchased a 800c receiver, only now to learn it does not have a bottom cover! While I discuss with the seller, I am curious on how much work this adds to my project... Looks like heavy sheet metal, attaching to sides of the chassis. The holes in the bottom secure the chassis to the cabinet? I don't bend sheet metal, so I am going to have look for a parts unit or have it fabricated. Anyone else have to find a bottom cover? Is this a deal breaker or an easy fix? Any suggestions?