I always felt like the advantage of a three man show is, pretty much every hand knows what the other hand is doing. And if not, one can ask the other pretty easily!
One thing I forgot to mention Jeremy, is the clutch bracket hole. If yours is a manual transmission, the newer blocks don’t have that hole.
Not an insurmountable issue either, as there are not only parts available to get the job done, but you can also drill and tap your own hole if you need to. At least on some of the blocks.
And Molesworth, what part of the area are you in specifically? I would say just keep watching this thread and see what other suggestions come up.