[Leica] Pentax 6x7 lenses on the Sony 7AII

[papatorry at etex.net]

Everyone,

I'm pretty sure that I know the answer to this question, but thought I
would get second opinions before I make a big mistake.
B&H photo sells an adapter that will allow my Pentax 6x7 lenses: 45mm,
105mm & 150mm to be used on my Sony 7aII camera. I also own the matching
Pentax extension tubes for the lenses.
However, the Pentax lenses are huge compared to all of the 35mm full frame
lenses that I own. I'm not even sure that I could mount the camera and 6x7
lenses on a tripod.
Is this a case of, "Just because you can do something doesn't always mean
that you should do something"?

Thanks for any help and insight that you can provide. Save me from making
a big mistake?

Wayne