The asr brace is excellent, but a little pricey (remember youre getting something that isnt mass produced really)...I love mine. If youre going with the asr brace you might as well just go with the itr 22mm rear bar rather than the junk2 unit.
Stick with stock endlinks - theres nothing wrong with them and they dont make a lot of noise either.
You dont need lca's - stock ones are just fine.