After some delay (the person I deal with at this supplier was off for a while due to an accident) I have some answers on the 48mm PVD case that appeared to be the most popular option.
Here is the photo for a refresher....
The width between the lugs is 22mm, and the case is rated for 3 ATM of water resistance.
Because of the large size of the case, it does not take a stock dial, so a custom dal would be needed for it. The only reason I mention this is that it will affect the price since custom dials are typically (depending on the specifics) more expensive to get than stock dials.
Hope this information helps.
Cheers, Al