Carburetor for late '69 z50a

Everyone was so helpful on my last post that I thought I'd try another...

I am looking for recommendations on a replacement carburetor for my late 1969 Honda z50a mini trail.

I'm hoping to find something that is a bolt on replacement for the stock carb that can be used as part of my troubleshooting.

I found this one
but in the description it says that on early models the intake manifold studs will need to be removed. That, and the fact that there are no measurements, is making me question if it will work for me.

Does anyone know of any good direct replacements? I can provide other info if necessary (hole spacing, diameters, etc).