What do I need to convert early 28 to 16" wheels?

[28RPU]

I am considering putting my 16" 1935 wheels on my 1928 early (AR) pickup. I understand the brake drums are unique to early 28. What would I have to do to bolt on the 35 wheels without changing anything that could not easily be changed back later? I would try it now but the wheels and the car are in different places so I don't want to go get them if they won't fit.