I have the oem bra, only use it for trips like yours. It works great, but you have to be sure to have the hood/fenders absolutely clean before installing it or else it'll leave fine scratches. The morror covers are not included but are only like $25 for the pair, sometimes cheaper on ebay.
I got mine at eagle-day -
http://www.eagleday.com/expr.html . Just checked and they've gone up a bit since I bought them 5 or more years ago, but still reasonable given the cost of a respray.