If GMK can't do the Diablo font then there's absolutely no point - although, as said, if they are willing to make new moulds for Cyrillic for Yuri then maybe they'd be willing to do this too? I mean I guess this is way more specific and won't sell nearly as much as Yuri's Cyrillic kit will but still.
That said, if we go the SP way, I still think we should go with DSA - I don't really like the red on SA caps but that might just be me, it'll definitely be easier/cheaper and it'll also be a lot faster if we do go DSA. I guess a lot of people dislike uniform, though.