These two blocks I have wanted for ages!!! Much needed for spiral staircases, these two blocks would be of enormous value to any serious medieval castle builder.
I have tried to get some other mod-makers to implement this, but few people can do your "non-cube" shapes. (I mean the vast majority of models are still made from cube/rectangular pieces) XtraBlocks by MindKrafter has a quirky make-do workaround for the above block on the right (okay, it was my model that he put in his mod), but not nearly as elegant as I know you could make it.
Seriously - how much money do you want to make these available in architecturecraft for 1.7.10?