As you say,I don't think you need a 9.8 on a T22... the 8 horse would be plenty. Whether the "charging system" is truly effective would be nice to know.. electric start is hardly necessary for such a small engine otherwise.
btw, in the smaller sizes Tohatsu, Merc, Nissan etc are all built by Tohatsu - one interesting tidbit when we last bought an outboard is that Nissan offered twice the warranty.
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)