Here's a card of the stadium from the 1992 BBM set (#103). BBM did a subset that year showing all the ballparks currently in use (there were 11 since the Fighters were still sharing the Tokyo Dome with the Giants then).
I swiped this photo from the book "Nostalgic Stadiums Of Kansai".
I've said this before but I'd really like to see BBM do another subset showing all the ballparks. Of the 11 ballparks featured in 1992, only six are still in use (Chiba Marine, Koshien, Jingu, Tokyo Dome, Yokohama and Seibu) and one of those (Seibu) has gone through major reconfiguration - it has a roof on it now.
I'd also like to see a set commemorating the tournament - maybe along the lines of the OB college sets BBM did a few years back. Something showing current NPB players in their high school uniforms and highlighting what they did at the tournament. Perhaps this could be a tie-in with the 100th tournament next year.