Thanks so much for the response Kong. I figured there must be a ton (pun intended!) of people who have used aftermarket pegs on their Cafe projects, and I finally did find one post through a convoluted search, which mentioned a set by name. It seems that this set that was mentioned (Sundance i think) should be possible to slip right in, without modification. But while looking at the photo of them - they appeared so similar to all the others i have looked at.
So your post is welcome news, and I will now be a little more confident to grab a set that looks right to me, and visually appealing hopefully, and go from there. Also, it seems that the problems that existed for some replacement pegs stemmed from the fact that they had a particular "top side," so that the angle of the stock peg bracket would make them sit strange/wrong. Many of the newer ones that I have found are completely round, which should eliminate some (if not all) of that issue.
I am not doing a Cafe build, but rather a personalized version - I guess somewhere between stock (seat, tank, etc) and cafe (possibly turn signals, pegs etc). Really, just seeing what appeals to me as I go - all with a very LOW budget. My main reason for wanting new pegs is because a new pair of boots I have (steel toe) seem to get caught up a bit while shifting, so I am looking at slimmer pegs that should give me a little more room, possibly coupled with a slight adjustment of the shifter (thanks Gaither). Esthetically, I will find it more pleasing, and functionally it will provide a more comfortable ride for me. Hopefully....