I have a '00 WR, and want to replace the seat/tank. My question is: will the radiator shrouds fit a '99 stock YZ tank perfectly? Also who makes the most comfortable seat foam for the YZ seat? Guts racing? Thumper? It can be a little taller, but by no more than 1 inch. Also can anyone recommend a cover? Does the extra gripping covers hinder movement?