Nice tank, but it brings a question to my mind since it's not shown installed. You've got four stout mounting pads welded to the top which is going to look clean, but you'll have up to 200# of fuel in there when it's full and I'd be concerned that those tabs are going to tend to deflect and break your welds, or violate the integrity of the tank over time, bouncing down the road. Are you using a couple of straps, too?