Sweet! Custom covers -
my favorite!!
I have done a number of customer covers and still work on them, too. I put a few in this post, but all are available for "browsing" by going to this link:

I came up with a set of covers for the Heisei series, too. The cool thing about those is that when you put them together in order, the spines line up, showing an image.
Anyway, I am a member of . Its a great place to be if you want to learn about this stuff - good community....
So I have these all available in 300dpi. Cyhunter, I know these don't fit your templates, but I just thought I'd show that you were not alone(!)....
-Kyle