ProbablyYou'll have to get some carving stones to sharpen it, won't you?
I found that magnesium oil helps my hand cramps when carving or sharpening.A Slack & Howden is a good plane and unless there are some unseen problems, I think that will be a nice beading plane. A few dowels of the correct diameter with some sandpaper glued to it will work, as Jim Creasman mentioned a diamond file does make quick work of it.
As for flattening the back - I get BAD cramps in my hands and have gone nearly exclusively to using magswitches for holding irons when I flatten the backs.
Also helps with leg cramps during the night!I found that magnesium oil helps my hand cramps when carving or sharpening.