Thanks all for ideas and input, I ended up with a lower cost universal set from Jergens. They will fit three slot sizes. After using them a while I may just take them off (and no I do not mind lifting the Kurt on and off it is not that heavy).
If I do take them from the vise I will use them for some other table attachments.
I do notice the size I list in original post is not for the 11/16 milrite table size, after getting the Jergens I found that slot size and sine key size has some "slop".