I guess I didn't make it clear what I was thinking about doing. After the modifications, I would end up with a 5-string "guitarlele" without the bottom bass string. The 5 strings would each be spaced equally. I would do this by first making a new nut with 5 string slots equally spaced. I would then modify the bridge setup by drilling 5 equally spaced holes through the bridge and top directly behind the saddle and anchor the strings through those holes with beads. It would be a "string-through-bridge".
There are many songs that I play where I find I could use that extra bass string and that is why I was considering doing this. The Ohana, because it already has 5 tuners, seems like a good candidate for the modification.
Having said all of this, I've decided not to do it. I have too many ukuleles as it is...!!!
Thanks Lori and Pippin for your input and help. It is appreciated.