Only thing I can think of to make it moderately deterministic and keep the +1 all, is to go for the veiled suffix of 35 strength/int. Maybe do a +all attributes craft later if you really need the attributes, you should be able to hit a max of 81 dex 57 str 57 int. But of course you lose a suffix this way.
Not sure if it is good enough for what you intend this for (I'd have said that it would look good for an omniscience, but derp, obviously not).