This is my vdb 6154 I've had for many years below in pics in varying bezels. I still need to find the proper bezel with a less sharp angle. I think the 2 piece bezel Athaya sells is probably going to be the closest to the correct shape but the one on it now, "the taller one" hasn't bothered me that much so... One day I'll get around to it.?
As for the case.,, Stephan "VDB" really did the best lugs I've seen anyone replicate to the gen look. I think there was also another 6154 case years ago that was similar that was done by Oyang but a few others more recently have managed to mod Athaya's 6154 case to get decent lugs that remind me of these but it takes some talent. The 6154 is a tough nut to crack, it's hard to nail all the subtle beauty the gen holds. I think it can be done with the right combo of modded current available parts if motivated. So unless a VDB or Oyang 6154 midcase pops up for sale the best bet is a properly modded Athaya 6154 case with the right lug profile mod and shallow 2piece bezel. That along with Athaya's best 8mm Brevet crown and tube and skinny solid caseback and shallow domed plexi crystal "like the one seen in my pics below" would be the best building blocks to get a solid 6154 case build.
Ive seen a few case modders get the Athaya case to the right lug shape so it's really about finding the right lug whisperer out there...