Hal, that's the way to do it. Just get some wood and start grafting. After a little practice it gets a lot easier.
For root stock, Albo is at least as good as Pride of Hankins. We do have both 4 inch and 6 inch pots of Albo that can ship anytime. Not blooming now due to pruning back but plenty big enough to graft onto or to get cuttings from this summer. All my grafts are going onto Albo this year - no hibiscus can match it for root and top growth vigor.
Charlie
I am also looking for root stock thanks for letting us know about Albo I was eyeing it yesterday trying to figure out which CV I wanted.