A zip file with the old covers I did is up at DChomebrew, if anyone is even still interested in this long forgotten project. Painted them myself by hand, and based the front cover on the old "Street Fighter Third Strike" cover, all fine brush strokes and stuff.
Thanks to Dr Zoidburg for putting them up
http://www.dchomebrew.org/trampdc.shtml
Done in the Japanese DC cover style, meaning you'll need just regular sized cases.
Also explains the logo designs.