Hmmm...
My experience with websites has been that unless an area has at least one post a day, few will read it. People will post questions, and there will be no answers, since those who have answers don't see the question.
Too many areas is worse that too few areas as far as reading a board goes.
But there has been a lot Dmax Repowering going on for a very long time. Cars, trucks, boats, rails, airboats, etc. I'm waiting for someone to put a Dmax in a motorcycle.
Casper is now actually a repower, since it has LBZ electronics mixed with LLY electronics.
Let me think about this for a day... I want repowers to be discussed A LOT, but if making a separate area stops folk from reading about repowers, then it would not be wise to separate it from Hard Parts or Tuning.