Looking at your pics, I assumed you were utilizing the covers for (potential) load transfer, they look great. I didn't catch the addtional plate reinforcements in the firewall work. I'm assuming the vertical plates were added prior to the horizontal sections. I'm thinking I'm going to use box section across the top of the rear crossmember. On mine, the existing stock lip/flange that secures the access cover has a decent amount of rust, so I'll just cut that out, add a crossmember & add the lip back on top. I'm curious how the right forward corner was dealt with beneath the surface plate, where the original inner vertical panel was removed. Since that area carries the right control arm mount, did you add any additional support or bracing in that 'well'?