What I can say, is the highest lift I've ever seen quoted as viable is 0.465", and that's using custom tappets, though, I suspect @Trirocket3 may have even bigger than that in his monster.
I do like his play room - but then I suspect the Bryant play room is full of goodies too. Now If I can just get you all to come and live close to me - then that would be just lovely.
I have fitted Neville Lush cams two or three times.
Good price and craftsmanship. And they even got a good working coating.
You can put them in just as stock cams. For the advanced user I would recommend slotted cam sprockets.
With any tuning camshaft it depends on intake, exhaust and compression ratio which lobe centers work best.