Lid vent looks standard size to me in that picture. I have and '87 that's like this, and a '96 or so, made after the current changes. The ones like this here can't remove the ash pan without leg disassembly (so, swapping out a new one, or a modified pie pan etc likely wouldn't happen), the legs are rounded metal that does not work in the current Weber portable table shared with the current Jumbo Joe and interestingly, the cooking grate fits more securely on the later (current) ones, so the bowl's grill notch is slightly different as well.
So unless you want the wooden handle, IMO the current SJS that got redesigned in the early 90s is a better, more flexible machine in most cases.