Anything other than a Savage seat will require mod's, that is just the way things are. Some require more and others less.
I was planning on replacing the stock seat on my '96 with a one piece very soon ... would you like to trade? My seat is in excellent condition. I would even throw in something else if you like. What would you like? Have you rejetted you carb? I have an assortment of used parts and have access to a lot new parts from the stuff I sell. So if there is something specific you were thinking of doing on your bike ... ??