Hi I was in a similar situation when I bought my Nikon Z6iii last year. I was reluctant to spalsh out major cash on an all new Nauticam system to support this combination and in the end it was a fairly major job to convert my old Anthis Nexus housing (ex Nikon D7100 - D7500) and port to fit the Z24-50 and WWL-C. I am a compulsive fiddler and have a lathe and cnc mill amongst other toys but it was still a major task. Suffice to say that it can be a challenge to get the bayonet adapter fitted to a third party port and also ensure that you do not get vignetting with the WWL-C and clearances. . . but I can confirm that it is possible with some systems. Attached pics of housing with home made port with integrated bayonet adapter . . . not a job for masking tape and bluetack. I will post a fuller story of the conversion .... one day. But I absolutely love the rig and the WWL-C equals or betters my old Tokina 10-17 and 100mm dome. As a happy snapper the abilty to go from 130 degrees to half macro (using a macro wet lens) during one dive is great. Many 'serious snappers' will disagree, but for me the flexiblity is great and worth the 300 plus hours of work involved . . . that is another story . . . Find yourself a local hobby machinist and present the problem and see if they rise to the bait.