If I was in your situation I would forget the profiles as old tech, and move on. It’s hard to find Profiles in lengths under 145mm’s, and even if you can it’s not compatible with anything else.
The easiest way to get a 32 hole rim to work right now is to use a 48 hole Nimbus hub and skip every third hole on the hub. Eric (Sask) just built up a 32 hole 29’er rim this way and it looks perfect.
Use the nimbus hub with the KH bearings and you’re set. Now you have a world of crank lengths available including all of the new short Nimbus Venture models.