That picture is blatant pandering. ;-T
He could use the Vert cover -- just pull the pump stuff and plug the two top spigots. The pressure relief plug can stay. The camshaft is drilled for the ATF drive, but it's a blind hole and won't affect the build.
Or I have an EV cover I'd swap for a Convert one. They interchange.
The downside I see with doing the loop timing cover is that then you have to drill the case for the generator brackets, pre-emptively account for the bracket breaking, and still have a fairly low output generator perched up there when you're done -- unless someone's got a belt drive alternator solution. The bosch system, although better than the generator, isn't a lot better compared to the ducati type in 1100.