Any chance you could make a version of this cover with the original logo? 
If I can find a scan of it sure. That scan that I used was fairly damaged in the logo department. I tried fixing it, but it was a little too far gone. I'll keep an eye for it, and if I find one I'll update the cover and cart label.
Is it really neccessary to get a hacked version of a game like Gleylancer? This has been released in Japan as a regular game so if you want to play it you could just get the JP version. I know that this game is pretty expensive though so maybe a repro is cheaper.
This game is surprisingly text heavy for a shooter. It has quite a bit of back story in the cut scenes at the beginning that explain some of the war and the events leading up the disappearance of the main character's father. There are also other cut scenes in between the levels. So it's nice if you can get all that in English. Though you're right, the game itself would still be playable, but you'd miss the storyline. Also, as you mentioned the repro is about $50 cheaper.