Its not about WHAT you paddle...it's all about WHO you paddle with
And with that said, it should be done in the greatest of style, with safety in mind. Getting down isn't the point. The river can be so forgiving and then in a blink of an eye, show it's power and humble you...and Grade V doesn't just humble.
1) Go to a playpark and learn to playboat and get a solid roll on both sides and hand rolls. Don't just bring you playboat, bring your creeker too.
2) Go in big holes and enjoy the beating
3) Hop on Grade III and catch every eddie, do some upstream attainment, and runs gates all the time.
4) Watch better paddlers, ask questions, and try to emulate their skill while building yours.
5) Once you've run miles of Grade III, move to Grade IV and own that Grade at all levels from low water Numbers (which isn't Grade IV) to high water whatever. Don't just run the safe line, push yourself into other lines that offer greater challenge. Catch every eddie, attain through the rapid. Practice paddling in and out of eddies backwards, back boofing, and do it all with style.
6) When you're styling Grade IV (which will take a while) then find a crew if you haven't already who are willing to take you down more Grade IV that might have a Grade V in it.
Good luck, be safe, show humility and practice.