I posted 3 scans of the Konami backgrounds; the highest resolution that the scanner program allows me to select (1200), the highest resolution that it allows in "magazine" mode (600), and the highest I could select in advanced mode (1600):
www.seanriddle.com/allkonamibgs1200.7z
www.seanriddle.com/allkonamibgs600mag.7z
www.seanriddle.com/allkonamibgs1600.7z