Been thinking about it since I got to work and have figured out what's going to happen. I a nutshell, I'll go with the scale option and trim the blocks to the correct 30 degree face angle. This means it's time to break out another tool, a hobby sized table saw:
https://micromark.com/cdn/shop/files...3244&width=610
Since the blade can be tipped up to 45 degrees, I'll tip it to 30 degrees and shave the glue blocks down as needed. Shouldn't be an issue with the appropriate tool