Final Fantasy XIV Database - Ffxivpro.com

Unfortunately under the use of footwork, your hand to hand weapon's delay and damage are ignored and go completely based on your base kick dmg plus whatever boots you have to boost that dmg. The same goes for Dragon Kick while using footwork. However, attributes will still carry over for your kicks and Dragon Kick, making Useshi and Meteor Cesti ideal for footwork use.

I have yet to test Martial Knuckles, but I won't shut out the idea without seeing some results first. On a final note, MNK/THF can be incredibly powerful with use of Footwork Dragon Kick and or STR build Sneak Attack Full Swing.