Looks like 11 speed chains have the same interior spacing as 10 speed, so an 11 speed chainring should work fine.

My rear deraileur has a max capacity of 29t and a max front difference of 14t. That means an 11-25 cassette and 53-39 chainrings… at least that’s the only off the shelf combo I found, and only in 105.

Do y’all think I should do that, or get an Ultegra 52/36 or 50/34, and get an extra chainring to reduce the difference?