To complete the wheels, I installed
Shimano SLX RT66, six-bolt 160mm rotors in the front and rear, and a
Shimano Deore M4100, 10-speed 11-46T cogset.
The rotors are the lowest-priced Shimano part compatible with both resin and metal brake pads, and were chosen for that reason.
The cogset is all steel, making it heavier than cogsets with aluminum sprokets, but also a lot harder wearing and longer lasting, in line with the general ethos of the build. It also has a large gap, 37 - 46T, between the two largest sprockets. Whether this is objectionable in actual use remains to be seen, but given the range of 418% and the $34 price for this part made in-country, it's hard to pass up.


Note the use of Torx bolts to affix the rotors
Cost of the complete wheel pair: $160