The Savana came with a 2 piece flooring - the molded rubber floor in the front stayed, the wet, yucky large piece in the back was armwrestled out by the guy who did the bodywork for me. Then I scrubbed the metal floor clean, painted a few spots that needed it and carried on. I used a transition piece from H/D to edge the rear floor and tucked the front rubber mat under the edge.
BTW, IMO you really want to use vinyl flooring instead of hardwood. The van floors are subject to a lot of abuse, think of it like your entryway or mud room in a S&B....wet shoes, mud, sand, pine needles, wet clothing, spills in the cooking area.
There's lots of great vinyl flooring out there that looks as good as if not better than true hardwood and will stand up to the abuse a whole lot better.