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... I found some photos (see example below) 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?