So it’s come to this:

I’ve got the legs glued up (laminated) and close to final dimension, and started ripping boards for the top today. And I almost apologize for the horrible lighting in the front. One of these days, I’ll get an additional light or two for this side of the bench.
I have decided to aim for a thickness of 2.5″ (65mm or so) on the top. I do this with some trepidation; I’d prefer a little thicker, but I just don’t have the wood on hand. My main Roubo-style bench (also shown above) is about 3.5″ thick. But I figure this will be OK, because I don’t actually plan to do much handwork on this thing. I don’t see a reason why I wouldn’t use my main bench for planing, and on the off-chance that I decide to mortise or something on the new bench, I’d do it over a leg anyway.
I have not decided on the width. I was considering around 20″ (510mm or so), but I could go wider, again because this is not my main bench and the problems with wide benches will not matter on this new one.
Another note is that I will likely use a strip or two of hardwood for the front part of the bench, as I did with beech on my main bench. I have some soft maple on hand that should fit the bill.
I’m almost out of glue. I ordered more liquid hide glue, but I do not know when it will arrive, given current circumstances. If that does not ship soon, I do have a backup: hot hide glue. For now, though, I’m going to let those pieces for the top destress a little before I flatten and prepare them for face-jointing.