Rick,
You've got to keep positive thoughts flowing, or you're going to develope bad karma.
Now, if you could only build some kind of ginormous field carriage, and if you could also somehow talk Bud into borrowing you three hitches of their Clydesdales, to equal 24 of the big fellas, then I think that the XX-large Krupp could possibly be made to function as a field gun (OK, maybe not).
I find it kind of surprising that considering Krupp's rising fame around the mid ninteenth century mark, that there's not a fair amount of existing representations of his early breech-loading field guns; but there ain't (at least not on the
Web)! BTW, I haven't thrown the towel in, not just yet.